the only way to get a real idea of their accuracy is to strap the gun to a set up that cant move and ALWAYS aims in the same direction

Excellent video! Evaluation results were collected scientifically and objective based using actual data vice opinion or here-say. Nice to see an evaluation that is unbiased. I considered replacing my Glock barrel but the results of the testing showed that the stock Glock barrel performed the best. Good job and thanks for the video.

Just got the ported Lone Wolf for my 19 and it is AWESOME. Even though mine is a Gen 3 it works with the Winchester 115 grain with no objections.

The Lone Wolff chambers are notoriously tight and short. I bought one to shoot lead through my G34 (the only bullets we could get for our reloads) and it was very finicky, especially with reloads that hadn't been sized all the way to the base (the Glock chambered these fine). My friend had a Wilson Combat that didn't suffer the same issues. If I had it to do over, I'd spend a little extra for the KKM and avoid the chamber issues so many report with the Lone Wolff.

Love my KKM G31 .40 barrel!

I can explain the velocity differences, I'm surprised the KKM was as close to the Glock barrel as it was. Velocity differences with the same ammo in different barrels is caused by a few factors, how many lands and grooves and the surface area of the lands. Then there is the rate of twist. It is no surprise the KKM was the slowest as they usually use a slower rate of twist than most. A slower rate of twist reduces resistance and less resistance creates lower pressure as the propellant burns while traveling down the barrel. KKM uses twist rates they proofed for optimum accuracy in . There barrels are built in mind for sport and competitive shooting where 115 &124 gr. pills are the go to loads thus the twist rate is based on those weights. Most manufacturers, like Glock, use faster than optimum rates for 115 &124 for two reasons, 1) to aid in hollow point bullet expansion of all available bullet weights through faster rotation of the bullet in flight and impact, 2) to better stabilize the 147 gr pills that are generally popular in defense or LEO loads. Also if you want to measure the chamber accurately get yourself some hole gauges. You cant accurately measure an inside radius with verniers.

I don’t know if I’m crazy but my kkm barrel feels like it made my Glock much much more accurate, groupings are better , and I couldn’t be happier it’s amazing

Unless you are able to shoot groups one on top of each other its not even worth comparing . The barrels are more accurate than a normal human can shoot . I would use the glock barrel for protection and wear out the other two jmho

Good video. I was thinking about getting a new barrel for for my Glock 19, but now I will keep the Glock barrel.

Good video. Shows what I believe: Average shooters should stick with the OEM bbl. I know that I throw the rounds, not the bbl. Cops that fire 37 rnds at a suspect don't need a KKM bbl... I shoot hardcast 124s from my OEM G19 and G26. No leading at all, but I clean after 50 rnds. I Like that ammo-1320 fps is .357mag performance.

Good velocity comparison, it shows the Glock barrels polygonal rifling does what it claims, the accuracy portion of the testing was inconclusive

In the beginning of this video when he shows all 3 barrels right next to each other. You can totally notice the standard Glock barrel has very precise, and has perfect cut edges. The other 2 barrels are really rough and look all jacked up. Also they look like somebody with no experience took a dremel and tried to make a barrel.

Regarding accuracy, and trying not to be too critical, you would have been much better off shooting from seven yards out and putting the gun on a bench rest. Your shots were so off you're lucky you didn't shoot your machine.

Not a big fan of the glock barrel, but it outperforms the other two!

Glock stock barrel is perfect and more durable than most aftermarket . Only issue is repeatedly using lead hardcast ammo. Unless you want to feed any trash ammo or hardcast without issue, or want a comp/extended barrel for target shooting, Save your money and stuck with stock.

Lone Wolf barrels are suspect. I got the Lone Wolf Alpha G23 40-to-9mm conversion barrel. It will not chamber some of the off the shelf CCI 9mm rounds (not reloads). I sent the barrel back to Alpha twice and it's no different. I sent casings along with it to demonstrate. They were like a cork in a bottle and jammed in the barrel They work fine in 12 other 9mm pistols I have as well as another after market conversion barrel. Alpha even went as far as to tell me that the casing must have expanded when fired in a Glock because of loose tolerances in Glocks. I told him, for the 4th time, that it wasn't fired in a Glock. And the spent casings still fit in all other 9mm pistols perfectly. If you want a 9mm barrel, and you want to be able to get rounds off the shelf and know they will work, don't get an Alpha. When I told them I'd take them up on the offer to refund, they stopped responding to my emails. I have all the emails to go along with the story - complete with names and dates.

I like to know, Why are so many people buying after market barrels?? I do not see anything wrong with the standard barrels. Plus I do not see any improvement in accuracy either with other brand barrels.

Question... wth are you aiming at?

I'd go with a factory or kkm. IMO the recent lone wolf's seem to not have enough case support. See my kaboom video. storm lakes seem to have a super tight chamber - if it works your golden if it not then I've heard less than desirable experiences with their customer service.

Excellent video! Real data and not all opinion-based. Nicely done! Makes me sorry I spent $250 for an aftermarket barrel. Once again Gaston Glock's genius shows through -- not bad stuff that Glock equipment...

Keeping my Glock 30 stock. It works every time!

I have the KKM barrel in my Glock 19 and it is a shooter. It shoots so well frankly I think its a fluke that it just happened to fit up perfectly with my slide or something. It isn't a placebo affect either as I have several 19s and shoot this one significantly better than the others. I ordered one for a Glock 17 build to see if I could replicate the results, we will see...

Look at KKMs grouping...it'll do what it's designed to do, nuff said.

Wow I guess unless you're looking for some bling the stock barrel wins hands down. Better support = higher velocity = lower deviation. Thx for the vid.

Overall I think it's a better barrel. Especially when the first shot counts. Honestly I think the factory barrel is fine (in 9mm) as long as it shoots good.

Great test..conclusion.? Keep the stock GLOCK barrel.

Was going with Kkm until I saw this vid and how bang up it get . Save my money and get a lone wolf. Thanks

Interesting! Good job! :)

I have a lone wolf barrel. I bought it because they are rifled instead of hex like the glock factory, allowing me to shoot cast bullets. The trouble I have with the lone wolf barrel (other people have the same problem) is that if you shoot reloaded ammo, the casings had to have come from the lone wolf barrel or be brand new brass. If it has been shot through the factory barrel, the brass has the "glock bulge" and won't chamber in the lone wolf barrel. I have to slam the slide to chamber it.

Got a KKM for my glock 21 Gen 4 to have more chamber support for 45 super/smc

i got a kkm match grade with the external compensator in 357sig and it makes a big difference in the reduce muzzle flip

Once again we see that Glock OEM is superior to any aftermarket option in every way.

check lone wolf's website - under Canadian extended length barrels I see 107mm. 107mm = 4.2" If your patient you can usually find a used kkm for about 100-115. I'd opt for kkm over lwd any day.

Good test showing some useful info. Thanks for making the video.

Good video. I enjoyed the test. Thanks for your work. Perhaps the bitches posting here could submit their own accuracy tests with various barrels and impress us all with what I'm sure is unparalleled shooting ability.

If you're shooting +P+ 9mm why don't you just shoot 40 caliber?

I had an alpha wolf in my g19 had no issues at all until i had one round that the bullet was pushed down into the case further than normal....Boom, it blue up on me. Split in half down the length of the barrel. Movedon to KKM

Really looking forward to your ransom rest results! :D

That was helpful! Thanks for the video! :)

my understanding is kkm warranties reloads (still be careful) and lone wolf does not...I would be especially careful with a lone wolf in 40sw or 10mm.

Has something changed with KKM? Their website says their barrels have fully supported chambers.

Great video very informative, thank you.

Great comparison. I am looking to replace my G23C barrel with a non "C" and am having a hard time deciding between Lone Wolf, Storm Lake and KKM. The price difference seems to not reflect on performance it appears.

Glock 19 barrels are fine, 10mm on the other hand has to be swapped out for aftermarkets.

This means that for a match, I have to use my factory barrel so that I don't run the risk of having that one out place piece of brass that ruins my time because I have to slam the back of the slide to chamber, or slam it open because it wouldn't eject.

Wasn't meaning to say you suck just thought maybe you don't shoot your 19 as much. In love my 19 and shoot it way better than my 34 which I don't have that much range time with. Good vid keep it up👍

I hear a lot about the Glock barrels not being supported and reloads blowing out the bottom is that the case with just a 40 calibers because the 9 millimeters lone Wolf looks just like the stock one

Great video! I'm trying to decide on a threaded barrel for my Glock 19 with AAC Tirant 9S suppressor .

No offense intended... but for all of the equipment you have, you really need to perfect your shooting skills with more range time. You were at 15 yards and only hit the target once? Buy cheaper ammo and develop your technique.

I think the stock barrel will be sufficient 99% of the time IMHO YMMV....

great vid. I love my 19, favorite gun. 460 Rowland is making a 9mm conversion (960), starting with the 19. would love to see that one run through its paces.

I've had KKMs on all my Glocks. There was always increased accuracy with the KKM. 😁

Nice vid, with good comparisons. However, I wonder about the chamber measurements. The 9mm is not a straight case; it has a slight taper. If you did not measure at the exact same depth, the diameter will be different. I bought a Lone Wolf barrel for my Glock 20, and the difference in chamber dimensions was significant, when comparing the same round dropped into each chamber. The Lone Wolf barrel had much less "wiggle" room than the Glock barrel. The Lone Wolf barrel also has less of an unsupported chamber than the factory barrel. I did not try an accuracy comparison, because I bought the Lone Wolf so I could shoot lead bullets without worry. Again, nice video. Thanks!

Thanks man I needed this

In all fairness, the LW may not have enough support for what you were trying to do with them. That's different that not having enough support, period. Hot loads in reloaded brass are pushing it. Reliability comes at the price of brass life and maybe accuracy. You can get better accuracy AND better brass life, but you sacrifice reliability to get it.

well if my shooting equally sucks i.e. the same for all 3...then you should be able tell something. Anyway, I bought a ransom rest and will be re doing this test at 25 and 50yds. Then we'll all know for sure

The wolf art on the lone wolf barrel is LOL

Dude, are your sights off?

I just bought the LW 4.2". Found it online for sale $95 shipped new Figured I wouldn't beat that. Why do you prefer KKM over LW?

Plz tell me.how much is wolf barrel life time and its performance is ..? Which will be best for me

Is that the 4.2" one? Im looking to buy one for $90 but its listed as the 4.2". Wiki says glock 23's are 4" barrels. I just want to be sure im not ordering the extended barrel. I want the flush like the factory barrel. Is that the 4 or 4.2"?

Frank Underwood approves

Boy how Underwood has sucked in their current ammo the 357 sig gold dot used to be 1600 from a g31 now it’s 1480 I tested yesterday

Can you shoot reloads in the Lone Wolf, and KKM barrels? Thanks!

all had less than 1000 rds on them...which isn't much when one considers the life of a 9mm pistol barrel...approx 100k+ rds. (based on a popular throat (rifle) erosion calculator)

Looking into my first Glock I know a few things about putting my own spin how id like it to shoot. Any other suggestions for what I could do??

Ill go for the factory glock barrel,,,

So which Barrel won???????

I don't recall you saying that the after market barrels were match grade or not. A Match grade barrel will be tighter than the factory barrel. This allowing less energy expanding brass and more energy pushing the projectile out of the barrel. If these were Match grade barrels I would not waste money on them!

Excellent

I say there is no need to buy an aftermarket barrel for a Glock. If you shoot a lot of lead and I mean a lot maybe go aftermarket. But the factory barrel will shoot anything including a fat reload or two that may be in your batches with no worries.

I'd probably go with KKM or Bar-Sto or factory threaded.

I will never buy a Lone Wolf or a KKM barrel. If they look all rough and unprofessionally made, I would hate to see how they perform.

How long have you owned each barrel and the amounts of rounds of each prior to this video. Your ramp on the Lone wolf looks Much more broken in to me.

sweet video nice job!!!!

Can u make one using the double diamond barrel from glock store see how that one does ?

When a "product comparison" is done you need the expertise and understanding how to do so in order to not spread incorrect information. A; measuring the diameter of a hole (in this case the chamber) you can not get a reliable measurement with the jaws of a caliper. The flats on the caliper result in an inaccurate measurement by contacting the radius off center. You need a hole gauge or plug gauge to do this. B: Explain the parameters of your accuracy testing. Im not sure if you were shooting off a bench or free hand. Without knowing if you took some precautions to eliminate human error the test is inclusive.

If Glocks are such "Perfection" then why would you invest in so many upgrades?

awful shooting

hi sir I'm looking for the kkm precision barrel for my glock 21 in .45 super and I cant seem to find it on their website? any idea or how about a link????

Kkm over lone wolf any day

no offense intended, but I've seen have sen shooters (including mysely) not able to shoot a KKM to it's full potential. Proper practice will imporve your grouping.

If you can afford it I'd highly recommend a Bar-Sto. See my glock vs redbull at 100yds video heh

Do they make different twist rate barrels for handguns??

All aftermarket barrels jam to much. Use them for the range only. Stock for SD.

good info chief

Do they all run with the stock recoil spring?

Can a glock 17 shoot +p and/or +p+ no problem?

Very nice thank you Sir,

Thanks!

thank you bro!

my mans that aim

You cannot do proper velocity checks with factory ammo. They would need to be hand loads and hand trickled in, not dump charges of powder, and a string of 10 shots through your Glock barrel for a control average. You have shown that the Glock barrel gives you the best accuracy for THAT ammo, but checking velocities per barrel makers cannot be done with ANY factory ammo, or any hand loads where the power charge is dumped in. Each charge must be as accurate as possible. This is what keeps your velocities closer. So other than accuracy, the results are .. well kind of non-existent. As far as one poster talking about twist rate, this has nothing to go with it. Since the barrels are different, you want to find the one with the most consistent muzzle velocity from shot one to shot five. The actual speed does not matter. This again is why factory ammo will not work for a test like this.

I don't know how the Lone Wolf barrel performs but the KKM sucks. At 25 yds the group is much wider spread than the factory barrel.

I guess I can't count

there's nothing wrong with a Glock barrel........why change? you'd never notice any difference in accuracy

Too much finger on the trigger?

I think what you're discovering is you wasted your money buying those other barrels Glock barrels are best in GLOCK guns. Definitely the most reliable. This is what happens when you THINK you know. .

Big difference but you won’t see it shooting that ammo.

I'd go bar sto all day