I took delivery of a Hatsan Mod 130S in 30cal. I do NOT have a chronograph to shoot over for velocities but the "Sound" of the 30cal pellets striking the back of the pellet trap is FEROCIOUS!!

This is with non-expanding pellets. With equal fpe, the 25 would have more velocity and less frontal area to expend it, so it makes sense that it would penetrate deeper. By limiting the 30 cal FPE to that which the 25 can attain, you are placing the 30 at a disadvantage. Max out both calibers with a mid weight expanding slug. Also if the rifle you're using isn't able to shoot 30 cal projectiles to their full potential, that is another disadvantage for the 30.

I chose the .25 caliber because it was in the middle of the range of choices. .50 caliber has far more disadvantages to be reasonable and .177 was out of the question, so it basically came down to magazine capacity and air consumption. The .25 caliber is a perfect all around size that covers all the bases and checks all of the boxes.

Ok, love the premise of the video. I love the science of it. BUT, and I hope this makes sense to many reading it, FPS for the .30 was way too low compared to the .25 cal. For some reason, we have lost love for FPS and gained so much more attention and respect for FPE (not me). WHY? Well, there can't be FPE without FPS and GRs (weight). FPE is a biproduct of FPS and FPS + GRs of a projectile will determine penetration/tissue damage. Lead dome pellets are basically solids and it take a lot to deform them to any degree. The .25 cal pellet is much narrower than the .30 cal dome. The .30 cal dome is short and stubby as opposed to long and slender like the .25 cal dome you used. As a matter of fact, they might be similar in length. So with comparable FPE #'s, the .30 is easier to stop and will do LESS tissue damage/penetration. Also, the more FPS you have, the more a bullet will deform under stress when it hits water based mass such as flesh. And FPE is calculated as FPS x FPS x Grains / 450240. So we are clear, I'm not a .30 cal fanboy by anymeans. I've always been a fan of the .25 cal moreso. I've done a ton of hunting with both. In short, i would like to see a video with both calibers being pushed to the same speed. So basically 975 fps for both, or whatever. I will add something else for all to ponder, the powder burner world does not make two different caliber guns do the same FPE. No one does that. They straight up say, .308 Winchester vs .30-06. Or .300 Win Mag vs 7mm Weatherby or .338 Lapua Mag vs .50 BMG. Reason being is that you dumb down one round to suit your argument and its not a true representation of the offerings of the "DUMBED DOWN" round.

I like to see the same tests at around 70-100 yards. I think that distance is more representative for real life situations and could give other results.

This was one of cooler KZfaq videos I've seen in awhile. Educational, informative, funny, and most importantly entertaining. I love this guy doesn't take himself too seriously.

What were the velocities of each pellet? If both are making same energy, it would seem the .30 cal is handy capped by the lower velocity required for both to obtain equal FPE? I believe the sectional density of both projectiles are very close. The deciding factor is velocity. Redo test and run the 30 at the same velocity as the 25. My hypothesis is wound channel length will be similar if your testing was based on velocity. Your findings appear to be accurate based your parameters. Based on my understanding (I'm no expert) Hydrostatic shock is generally said to start at velocities above 2000-2200 fps. The temp wound cavity must expand greater than the tissue's ability to stretch and recover. Air gun hunting is most similar to bow hunting as cause of death will be from organ damage or loss of blood, not hydrostatic tissue damage. I've enjoyed your part 1 & part 2. Please do a part 3 and make your test based on velocity and repeat with same projectiles. I wonder how the extra PFE of the 30 will effect the test?

from my research it seems .25 is better close range but the .30 retains its energy at over 100yds makes me happy that my pistol carbine is .25 and my sk19 rifle is a .30 .22, .25, .30 are the calibers i use most and .25 really is the perfect blend of cheap ammo plus respectable power

Excellent demonstration ! Been an air gunner 50 + years now. The innovation and styles have come a long way. Yet, the same old debates are alive and well... Freaking awesome!🧙🏻‍♂️

Watched both videos. They both made sense, and as a bonus .25 through .27 caliber projectiles have better ballistic coefficiancy allowing them more accuracy and range as well. Thumb up on both videos. 😎

Very interesting!! I do disagree with you about the entry wound. To me the 30 looked like there was more damage but I also feel this would play into what you are saying and that the .25 retains it's energy to cause more penetration after the initial hit. Great stuff man!!

Love your video Donnie I been watching them since you were doing them in the basement in your house. You cut through the BS and show the true numbers love it!

All I can say is you are brilliant. I just wish I could articulate myself as well as you do.. in my videos. And I love that you gave us informed pertinent and real world information. You didn't give any speculation or so-called hearsay. I really really love these kind of videos. I enjoy soaking up real information and progressing in my learning. I look forward to your future videos

Interesting video. Might be a more accurate representation if the impacts were set up at the same velocities instead fpe. That said I have taking a 240 lb wild boar at around 45 yards. I used an fx impact compact m3 with 44.75 grain .30 hybrids @ 885 fps. Great video!

Great Video!!! As you stated. Shot placement is #1, Penetration is #2. As an air gunner, most of my shots are focused on putting a pellet in the animal’s brain. In order to do that it is imperative that you have a round that can penetrate the skull. Your video definitely proved that the .25 cal was the better choice.

Once again - excellent content Donnie. My Physics teacher was a Major in the British Army. At age 12 this main impressed on me the following example of Force over Area. He took a Plimsole and flayed my arse with it for being insubordinate. Disappointed with my expressed level of anguish. He changed tack, and used an Ebony Ruler on my thigh. Still frustrated by my less than adequate expression of remorse or apology. He then used a cane. The Plimsole left red marks. The ruler left a welt. The cane split my cheeks open. I still didn't apologise, but I learned my Physics lesson. Guess I got a head start on some folks. And to further support my real world experiences of training Load over Area. As a qualified Structural and Civil Engineer, I had to walk around my Construction Sites in Boots. As a trainee site manager, fresh out of TECH - My Supervising Project Director gave me a safety briefing Day 1. THE most important point - DO NOT RUN AROUND ON SITE! Here's the thing - I'm then 22 weigh 205lb and train 5 nights a week for three sports. Running, fast, was a competition. SO I ran on site. I ran over broken bricks, lengths of 4 x 2 . Formwork, Trench Shields, you name it - everything. That is, until the day I ran and had a nail come up through my boot and right through my left foot! I mean ALL the way through!!! Now, I'd run over hundreds of lumps of 4x2 and bricks and not one penetrated my boot. I ran onto ONE nail and it nearly ruined my sports career. My Boss - when he saw me at the First Aid Shed - took one look and walked away. LOAD on cross sectional area dictates penetrative force folks. Fell free to try this at home on yourself. For the armchair experts - place the hand you use the least on a hard flat surface then, taking your wifes rolling pin with the other hand....................

Speed does make a difference! Weight and diameter makes a difference. Shape does make a difference. Minute and variable! Nice vid bro. Now get the bbq hot and bothered! Oh yeah!!!!!!!

Thanks for the video ! This was exactly what I was looking for to make my choice.

It stands to reason, that 2 separate projectiles moving at the relative speeds necessary for both to impact with nearly identical fpe, the deeper penetration(ooooh-ahhhh) will go to the projectile that is receiving the least amount of resistance due to it’s diameter. I’m sure you would have very similar results if you compared the .22 and .25, or the .177 with the .22, at the necessary speeds to create matching fpe. I remember reading about, so I repeated it-using my Whitworth .375 and a variety of factory hunting loads, and my 75# compound bow. The experiment was, as I set it up, to stand 20yds away from a 5gal bucket filled with sand, and fire projectiles out of both weapons at the bucket and record the results. Not one of the .375 hunting rounds passed through. While every field tipped arrow that I fired, did. Regardless of the overwhelming disparities in power, every bullet performed the way that it was designed by expanding from the tip back, and effectively increasing it’s overall diameter thereby increasing the resistance. While the lowly 400, or so, grain arrow, moving at roughly 300fps, producing in the neighborhood of 70ish fps-passed through every time.

Preach, Baker Airguns, Preach! Another awesome video and demonstration.

Thanks for the demonstration and of course facts which back it up. I have not shot a 30 cal. Air rifle yet have gotten some awesome shots/kills with my condor in .25 cal. I myself was seriously impressed with overall results in the power and accuracy lf the .25

Great video. That’s why I always like the slightly smaller cal but at a greater velocity. I been hunting all my life. I been shooting airguns my entire life plus powder burners for big game. I always pick a smaller cal higher velocity and a flatter shooting slug or pellet. Again great video!!!!!!

This video is television worthy. Excellent job Sir Baker

Great video Donnie. The question is, Did you grill and eat those loins after the test?lol

Donnie, I love the video (actually all of them) however comparing two different calibers at the same FPE only proves that one caliber performed better at the fpe tested, not that it is "actually" better. This is a logical fallacy. When comparing the total surface area of the projectiles .30 has 44% more surface area than .25. This means that to make the test fair you should have taken the 70 fpe that you were shooting the .25 at and increased the fpe by 44% for the .30. 70 X 1.44 = 1.08. So basically you should have been shooting the .30 at 100 fpe for a more accurate comparison.

My dog understands the first video ...it was so well presented

I watched your part 1 and now I watched your part 2 I have to agree with you. Very thorough review Thank you for that.

Hi, If both calibres were at the same speed, would there be any difference in the current results, also, related to the Kill effect, if there was a higher shockwave with the 30, (which wasn't evident) would this contribute to its potential lethality. Grazie Mille

Donnie your choice of black shirt and black background looks like your head and arms are floating in air. That really helps with your telling of the speed of our moving thru space.

Awesome video Donny! Great way to set the record straight...incidentally...people have to realize that your theory can be proven with a sowing pin...a smaller pin will pierce deeper with the same enery behind it than a larger pin..because there is less surface area to resist the entrance. Smaller...faster..less resistance ....equals deeper penetration...thats reality. In short...same energy...different mass..more penetration.

Great video, I love your common sense, I can relate to you in many ways, thank you!!!

With the meat test, you shot the 3p cal on the right, and then the 25 on the left, so how are you measuring 3p on the left later on the second loin?

Im curious what happens if you match the speeds of the pellets (at around 940fps at the muzzle) instead of ft.lb. And both calibers tested and compared on different distances up to 120 yards. Then the bc comes in to play.

Good info Don, thanks for the detailed presentation!

You easily convinced me on my next caliber pcp rifle to buy, thanks!

Well im so glad to have found your work and i was thinking bout going to a 30, cal but i think for my use im staying with my .25 cal

First, I appreciate your time, and love adding science to this project, but, yes there is a but.... why are you testing the .25 to its max energy level and not the .30 to its max? if we want a, what is deadlier comparison, let them stand on their own merit and max power. In science everyone knows if you put the same amount of pressure on a smaller surface it will penetrate further. Knowing this, your hypothesis is skewed in favor of the .25 because you stifled the full potential of the .30's, max capability but not the .25. Sorry, It is what it is. Laws of science, are pretty straight forward. My .25 can hit over 95 fpe with the right projectile, and rifle. my .30 however can produce over 220 fpe with the right projectile and rifle, and at that energy, it will do way more damage and effectively be more deadly than my .25. And yes I love shooting comparing then potential of everything I shoot. In a real hunting situation, it is important to match gun and ammo to game, determine your surroundings for over penetration in case of pass throughs, and as you said choosing your target and aiming properly is key. but in 63 years, shooting for 50, have found Dead is Dead. Do not take a shot you are unsure of! Practice, then practice some more, because regardless of what caliber is used, You are the Instrument as to what is deadliest! Love the Video Brother! One day, when I grow up, I just may take up making some videos myself....Keep doing what your doing!

Very good presentation skills. I wish you all the best and to even better things hopefully

A very interesting movie. You're right in this case. I am very curious what the situation would be like shooting with the same Slugs (JSB) at a distance similar to that used for hunting, for example 50 yards.

I love thinking about crazy stuff like how fast we're zooming through the universe! LOL

Speed made the difference. I like .30 cal and up but my favorite is .22/25 all day. Very well put and direct video💯

Glad I decided to go with the 25 cal m3 instead of the 30. Glad you guys had a Bronze one at the show In Kalamazoo. Keep them flat and fast!

It’s critically important to discuss velocity, bullet weight, and sectional density. The sectional density of a projectile is a great indicator of penetrating capability and it’s probably best to use a velocity that is typical for hunting guns for that caliber. The penetrating capabilities can vary greatly across a small range of bullet weights and velocities.

Nice video Donny! Hydrostatic shock is hard to measure but it is to me a form of instant hydrostatic pressure, the projectile does push energy into the gel as it cuts through, like a wave of energy, and if those waves are fast enough they can damage living tissue. Some tissue is more impacted. Subsonic Air rifles generally don't produce much. But if you shoot a high velocity rifle with same bullet characteristics at the gel, the wound channel will be greater in diameter. The bullet isn't touching this area, so what is causing the much greater wound channel?

Great pair of videos! I was a bit surprised at the differences so much in favor of the .25. I will need to go back and watch, but I thought I saw at one point a larger wound channel in the gel with the .30, but the angle made it hard to see. As for the meat, it did look to me like a larger entrance wound with the 30 caliber, as well as a bigger impact (how far they moved) in both the wood and the meat. But I'm not certain, it was hard to tell, and I will watch again. However, one thing is guaranteed: the entrance wound is going to be 20% larger assuming no expansion in either case. Now, of course, with the higher FPS of the .25- needed in order to keep energy identical- you are more likely to have expansion of the .25 to equal the diameter or slightly exceed the .30 diameter of the other. As for penetration, obviously, IF all other things are equal, more is better. (Do I hear moaning? Weird! ) However, an extra 20% penetration or say 20"- will be of zero benefit if the object being penetrated is only, say, 16". Or maybe 12"(how thick is even a human? Much less a rabbit?) The projectile will simply waste that extra penetration in a tree or ground. It will be particularly worthless if both projectiles penetrate, but one has a 20% larger entrance and maybe exit wound. But again, if the higher velocity of the .25 enables it to expand to = or exceed the diameter of the .30. In this case, the difference in caliber is so small that it is really hard for me to eyeball much difference in wound channels, particularly after the higher velocity has most likely expanded the .25 more. Still, I just watched it again, and it looks to me like a larger entry hole at the moment of impact, as well as lifted higher off the table, with the .30. But, maybe it is me. There is no doubt you have more penetration in all cases with the .25. Which would be useful if the extra penetration was needed. OTOH, if th FPS are increased just slightly, which would give higher energy for the .30 but still lower FPS, that would be interesting! I sure would like to know if the .25- at the same energy as the .30- would have penetrated those hog's heads. Or, if the .30, with just slightly higher FPS would have done so. Now, speaking of beginning wound channel size, comparing .25 to .35 or .45- adjusted for equal energy- that would be interesting indeed! Or, for that matter, how about .177? Any way, GREAT VIDEO, with surprising results!

Donnie I see you haven't posted in 8 months . I just got into pcps . Why did you stop??? This is the kinda data we need please start this up again!!!! This is an amazing. Screw the haters!!!! You should test .22 .25 .177 . Test slugs, pellets , what ever you can . I found this very informative. Thank you

I love the smaller caliber, lighter projectile, higher velocity generally equates too more deadly videos. You are a much-needed man of science in this world. Though I do firmly believe in hydrostatic shock. As you simply put a lot of guns cannot generate the velocity needed to achieve such a violent reaction.

So a 22 at 70 ft lbs should penetrate even further than a 25 at 70 ft lbs I’m guessing. Smaller surface area, less friction? Or purely velocity? Gotta test the 22 to 25 now. Thanks for the info. Also what was your reg on the m3 shorty set at? I have a .30 barrel kit on the way and was just curious. Also there are instances where less penetration may be desired. Good to know.

Donnie, your two part video series (Thank you!) are very accurate. I tested both a 25 and a 30 calibers in real hunting conditions. Folks that disagree, are entitled to their own opinion, but not their own facts. I read the comments for those fellow Air-gunners that disagree with the factual results, I say please stop licking the lead pellets, you’re losing cognitive value. Ha, Ha!

Nice work. Loved the info.

Bro new sub here geez you are cool af and smart as all get out , love your style :) ty for all info

Thank you for the info, I'm looking to buy my second airgun, and this was so helpful, regardless the decision that I already made it before find you ( .25 ;-)

The 30 cal needs more power to be able to compare. Are you using the appropriate power for the individual calibers?

Excellent presentation and testing.

Hi :-) I have been watching your great videos. I am considering buying a bolt action for backpack hunting in .25 or .30. But as a PCP newbie I need your help. I find the PCPs interesting when we talk about a distance between 50 and 100 yards, and there are plenty of videos of people doing great shots in that range and even further distances. As you must likely know .308 is the favorite caliber in use for snipers long distance shots but the other 99% of the soldiers use smaller calibers for closer combat, for this reason I think that your two great videos left an important question unanswered; at what point of reasonable longer distances does the .30 higher mass has an advantage over the .25? Does it?. It would be awesome if you could apply your same smarts to do a test at these not uncommon higher distances because there may be significant projectile behavior changes… and nobody else has done it! Thank you.

Interesting thanks for your testing and the video.

You guys are gonna see me soon I have a law enforcement convention south of you. Afterward I'm driving up to get my rifle. I'll do a video of my first hunt with it and send you the link.

It's also a historic fact that they've been through this before in the days of black powder. An elephant gun in those days was a four bore! After the Advent of smokeless powder, something along the lines of a 416 Rigby would usually do the trick. A smaller bullet to be sure but moving at a much higher velocity!

Shooting at meat!?! Your the best! Bought my Dreamline classic from you earlier this year, absolutely loving it! 25 cal of course. Great video thanks.

Sectional density is greater with a longer slim bullet. The smaller front area of 25 also helps. It would be interesting to see a hard pointed tip. Such as the H&N Hornet.

Certainly an interesting video. Thanks for sharing. 👍

.22lr (suppressed) beats them both. Excellent video, sir

Let me first thank you for taking the time to go through this topic... with respect to the two ( calibers .25 .30) the power a air gun power plant can produce is finite and depending on its configuration and mfg each shot diminishes ( from my understanding ) as the amount of Air diminishes in the bottle..so yes a .25 with a finite power unit behind it will attain a higher fps and thus a higher velocity ... and effectively be more powerful and more deadly ( and ) the .30 will be less effective if our powers are the same .. that is my understanding. Force X mass = acceleration Considering I am looking at going Air for some calibers I am curious on this topic because I am trying to see if I decided to hunt with PCP Air vs Powder what is my measure to determine 1.) the weapon to use and 2.) the caliber to use... I know the following and in the powder world ... the muzzle energy of a 9mm Luger (Parabellum) round averages out to 360 ft-lb, while a .44 Remington Magnum round averages out to about 900 ft-lb. One way to think about this is as such: a foot-pound is a unit of energy equal to the amount of energy required to raise a weight of one pound a distance of one foot. So a 9mm Luger (Parabellum) round exits the barrel with kinetic energy equal to the energy required for linear vertical displacement of 360 pounds through a one foot distance, while a .44 Remington Magnum round exiting the barrel has energy equal to the amount required to displace 900 pounds over the same one foot distance. As a rule of thumb, when it comes to hunting, muzzle energy is what many hunters look at when deciding on what caliber of firearm / ammunition to select. Generally speaking, the higher the muzzle energy, the higher the stopping power.

Thanks for the info and demonstration

Very interesting test. I would like to see you do the same thing with the 22 and 25 cal. Makes me wonder how the 22 would hold up against the 25.

Question. What about with hollowpoints? The 30 will spread larger (which would,indicate more resistance and shorter penetration, UT when you are talking about hunting, thst is what you want isn't it? Larger spread around the vital area?) (Also, if you are off,just a bit, same vitals missing distance with both calibers, ie, just bately missing, with pellet trajectory just barely missing vital organ, you have more chance of the larger pellet actually hitting vital area as it spreads, no?) Would the smaller .25 penetrate beyond vitals before spreading maybe? Just some thoughts.

You're making me like my .25 Hatson Bully more and more. I have been thinking of getting an FX Wildcat Mk3 in .30 cal but maybe I'll stick with the .25's.

This is a great follow-up to the original video! I'd still like to see the difference, if any, as you increase the distance to the target.

But but grandpa said my 45 ACP was the most deadliest thing in the world well 2nd first being Grandma's left hook 😂! Great vid sir thanks for taking your time and sharing!

Question! If the entrance for the .30 is on your right and the .25 is on the left and they didn’t cross than how is the .30 on the left when cutting the second piece of meat???

I'm will obtain my first ever, PCP pellet launcher from your website. Because of your straight talking, periodically humorous, test videos like these, parts 1 and 2. Clearly, given your listed prices. Thanks for your video presentations, sir. Bonus: A yellow jacket, too. Carnivorous bees. Go TECH! Sting 'em, lol Nerds and geeks unite.

That's a sweet lookin pork loin. I'm really impressed with your results. Airguns have come a long way. And thank you for the science aspect .very interesting.

Do you realize how hard it is to find an 18" chested ground squirrel? Love your stuff!

How do the slugs compare to the pellets?

Donnie, it's a great video like usually but I was wondering, how about comparing .30 and .25 with equal weight and fps. NSA has .30 43.8grain slugs as well as .25 43.5grains same metal density that would be very interesting. Considering somehow the slight difference in weight witch is 0.3grains

What if you Diesel the 30 I’m going to look for a .25 , I was looking at 22 till this

Yet another great video. Just wondering if that also translates down to a .22 at 70 ft/lb being even deadlier than the .25? More “Penetration”?

I'm sure there are a variety of valid opinions on the subject but my 2 cents. I prefer .25 cal for my personal use of pellet rifles. Most modern springers can shoot it fast enough to be effective on small game and PCPs can throw it with enough authority to take Hogs. Any ammo larger than .25 takes on a significant price increase and I will likely use a rimfire or bow on the larger game. I have no doubt my preferences are based on regional factors like laws and geography. Here in Michigan, I rarely encounter game at great distances (20-40 yards) more often than not.

Excellent work as always brother! Thank you for the information! And don't worry brother; you're pretty....lol! Pretty smart, pretty cool, pretty funny, etc.etc. !!! Keep up the great work man!

So plz extend this to the .177 caliber. Or is that automatically considered a more penetrating caliber than, in the same situations?

did you do a 22to25 comparison?

The moral of the story my honorable airgun friends is... increase the fpe of the .30 ? 🤔

If you can push two slugs of different weights at the same speed, the heaviest one wins every time. Pushing big stuff fast is our addiction. Rifle 1: 50 gr slug @ 800fps = 72 lb of energy Rifle 2: 30 gr slug @ 1,100fps = 80 lb of energy So, the smaller slug has more energy because it is traveling faster. If Rifle 1 could push the slug the same speed (1,100 fps) it would generate 134 lbs of energy, and be far more effective down-range. Here's the kinetic energy formula to try for yourself (works on grains of arrows, bullets, pellets, etc.): Speed X Speed X Weight ÷ 450240 = LB FT Energy (example: 800 X 800 X 50 ÷ 450240 = 72)

if you have the same output your right , but from 177 to 9 mm in fx the power is going lineair up with the caliber ,with same plenum pressure setting

I've been a hunter for over 50 yrs and you are right about the calibers at certain distances, out to and beyond 100yds the 30 cal is more deadly,

Love your channel Don. Thanks for selling me my FX Dreamline. One factor you may have overlooked in this video. Regarding hydro static shock. The military, the FBI and the medical personal who are experts on the lethal effects of projectiles are considering the effects only on the human body. A .25 caliber projectile will have an almost immeasurable greater effect on a squirrel. On par with shooting a human with a bowling ball. Imagine. I believe hydro static shock becomes a huge factor when considering the relationship between projectile and target.

Thank you for this video!!!!! This series was awesome!! This topic is why I believe the next big "wave" in our hobby is gonna be high velocity .177cal heavy grain slugs. Reason I think this is because of the velocity you can achieve coupled with the penetration, it'd be like shooting needles through butter😅.

Which would you rather be shot with... a 22lr or a 45. Alternatively shoot some clay and look at the wound channel ,The .30 is bigger. When hunting shurley it's all about energy transfer.

Please do the same test with 22 vs 30 I am very interested in your findings

Have you tried using the pork lion with the 1/2” board and then the second pork lion?

Great test.Now to use Hollow Point Ammo to see the affects?Thanks.

I will be doing a similar comparison myself. Great minds think alike.

Hey Donnie, would a .177 have more penetration then a 22 or 25 ? Trying to find my next pcp air rifle - but I’m not convinced bigger cal equals better at all - I mean theirs videos of a 177 killing a black bear with one shot to the head - given that 177 has higher fps and straights straighter and farther, it just seems like the 177 is best for what I intend on ( small to medium game around my house ) what say you Donnie

I want to agree with you. I will do the test. I have a .22 caliber FX M3 and a .25 caliber AirForce Talon P. Both with 34 grains. At equal power, I'm curious to see the result.

Great video. I have always not liked the bullet drop of the .30 cal at longer distances. I'll take the .25 every time.

You provided good facts. 👍🏽

I like your style.... I know, that you know.... We can't count that high 🤣 I'm interested in whether the projectile mushroomed? Can we get Barnes to make some copper hollow points? Great point proven on penetration. Steered me away from .30 on a future purchase Now I'm seriously considering .22 just for ammo availability and shot count per fill. You earned my sub

Interesting… as I sit here with a .177, .22, .25 & .30 cal pellets lined up on my coffee table. Just watched a guy take an Elk from the back of the head at 60 yards or so with a .30 cal… dropped like a sack of potatoes! You are correct, looking at the size and weight of the .30 cal, it’s not intuitive 🤣 My .30 barrel is on order for my FX Impact Mk3 so soon I’ll know for myself! Only question I had was the difference in barrel length. The .25 was shot thru a longer barrel and more FPS vs the .30 cal was a shorter 500mm and at lower FPS? Not arguing your point… just curious if all things were equal… love to see those results as well. I guess ft lbs of energy only count on small game? Great vid!!

Finally a rational and Scientific based youtube guy. Subed. Thanks

My theory regarding caliber damage wasnt that one was larger but could weigh more, that way it takes more energy to accelerate to the same speed which could make more use of the pressurized air, thats not tested here as both are shot at the same fpe. I agree though that at the same energy a smaller effective surface area will provide less wind resistance and more penetration obviously (as its also going faster). Could a 30 do more damage with a hollow point slug? That would seem intuitive to me idk.