Proper load development advice, from a man who knows a thing or two, and as always, put in a simple easy to understand way, outstanding.

The best 23 minutes you'll ever spend watching if you're a reloader, Period!

Thank God Radny is making archives of valuable smithing knowledge. Those of us who will still be shooting fire when laser guns are popular will need this info.

I’m sure glad you expanded on the use of the micrometer and where to measure. You mentioned that a few years back in one of your videos and now I understand what your were saying. Your the man randy, thanks for all the advice on reloading, it’s extremely helpful

I absolutely love Randy!!! He just loves to teach!!

After close to 50 years I thank you for sharing your experience and knowledge

Great job in explaining load work up! Your skill and experience are so obvious. Please keep posting. We will all be better marksmen and better hunters.

Fantastic info from a real expert!!!!!!!!!!!!!!!!!!!!!!

Only vast amounts of experience allows Randy to take a process which frustrates many handloaders, and structure it into a simple-to-follow process. The most important takeaway for me is one step with only one variable at a time. Thank you Randy!

Mr. Selby, you sir are a true and the one and only Real Gunsmith, thank you for all the excellent information.

Old man your knowledge with God given wisdom is a true blessing thank you for taking the time to steer the generation correctly. I've Learned alot and hope you will continue to teach us/me thank you Randy God bless

Hi Randy I recently found your channel. Truly the best advice ever given on how to load the 300 wby. I shoot a vanguard and my best group with 200g Accubond was .257. I routinely shoot in .4 .6 range. Did not know about measuring the belt will incorporate that into my reloading. Thank you!

Randy is absolutely correct, it’s all about harmonics and every gun is different.

I always enjoy getting some fantastic information from someone who knows a lot. Thank you for sharing your valuable knowledge and time.

Thank you! I appreciate your explanation of measuring the case head expansion.

Great video and thanks for sharing your years of experience. Thanks for a good starting point.

Thank you! What a great thing for you to share your abundant knowledge! We appreciate you sir!

Gosh that must be satisfying to put the work in and get results like that. Thanks for sharing your knowledge

Very helpful. I just changed my reloading procedures. Thank you Randy

Watched this 3x before I smartened up and started taking notes. Thanks Randy and Cathy!

Cant thank you enough for all this information. Every time i watch one of your classes yes classes and i think all this info is free. Means alot to alot of people.

I'll say it again- you are a wealth of knowledge Sir- thank you for sharing with us- I'm slowly getting into reloading and I find all of your content extremely interesting

Truly appreciate your knowledge you share. Thank you.

I've watched this a few times and several other videos you've put out and I have to say thank-you. I've been a reloader for only a short while but I knew I was more of a recipe guy. I'm fortunate to have found your channel and am learning more and more importantly, how and what to measure to safely work up a load.

Randy - Excellent specifics on proper accuracy reloading development! Wish everyone could watch and practice your load development advice.

Randy, I can attest to just how accurately you build rifles. My .300 WBY Mag shot slightly over .4 when I got it. Doing further load workup and switching to 180 grain Barnes brought it down to .337 with a slight velocity increase and SD improvement. Thank you for posting this!

Good stuff! Thanks Randy

Thanks for your video Sir, now I know why I'm so good at it ,you showed me how right. Been watching for some time and really appreciate your time,God Bless

Thank you for the information.

Randy, that was BRILLIANT! thanks

Excellent information from an Excellent Teacher. Thank you Sir.

Thanks tons, Mr. Selby!

I truly enjoyed this video. Never even thought about measuring the back of the belt. I'm going to do this with my 7mm magnum. It shoots very well now. But, with your wisdom it can do better! Thank you

Great video Randy. I use a different method, but I'm sure yours works very well, or you wouldn't still be using it. I love that feeling when the group size and velocity consistency tighten up at the same time. When that happens, you KNOW, you have a load that's going to hammer!

Thank you Randy.

Thanks for all your efforts

I learned about this in your videos a few years back and have also adopted this method during my load development. This makes much more sense to me to have something to actually measure then just look at because everyone looks at primes flattening or not and sees something different than the next guy and I feel that’s not reliable Randy’s method is. I got curious about some factory loadings I had around and ran this method on several of them and found that 3 out of 5 types of factory rounds I had were expanding between 6 and 9 ten tho at the case head. I was surprised to see this because I figured a lot of these factory loads would be loaded down just due to legal issues. Anyway just some info I thought I’d share. I like doing test like this and playing with my rifles and seeing what I can learn and figure out I’m always learning something either from randy or just things I get curious about and test here at home.

Life time of knowledge…..Thank you sir!

Randy, thanks for sharing your decades of knowledge, you sir are a national treasure.

Best video on this subject on the internet. It's not only your vast knowledge its the way you explain the process. I'm sure that you are tired of hearing this but you really need to write a book. Two reasons off the top of my head are you would be filthy rich and i would have several copies and get off this phone to do my favorite thing, handloading. Thanks mr selby.

83 grains of IMR 7828 in my 300 Weatherby 180 gr bullets will give me thumb nail size groups at 100 yards , thanks again Randy

I like this guy . He gives knowledge that' takes years of study to master thanks man

Thanks for sharing. Plus one on the barnes ttsx they are like lasers in my rifle

The more accurate that you want to shoot, the more accurate your procedures. You have to do the work.

thank you for another great video and a world of good advice. I'm gonna have to get me a micrometer and start using this method.

Great information. Thank you!

Thank you for the insight.

❤❤❤❤❤❤❤❤ can’t thank you enough for sharing years of experience in minutiae stay blessed with your loved ones

Thank you sir so much for sharing your wisdom. I love all of your videos

Guys always come on here and talk about what they are doing you guys should pay attention. This is an online class free of charge. Great video Randy thanks for your knowledge and expertise.

Thank you!

Very good!

Thats was a great video . What you say is what im going to try . Id like to see you do a video on 45 70 in the future

I hope more people see this share it

I've been shooting Barnes bullets for years because we had to shoot copper only in CA. I got the last few boxes of 140 gr .280 they made. It shoots .35" groups all day long. Just a run of the mill Remington 700 CDL.

So much knowledge ,

I wish I could climb into your head your expertise is amazing

This guy knows a thing or two because he has seen a thing or two. Thanks for video. Wish you would do more videos

Bought my first micrometer today after watching this video about 5 times. This is the only direct measurment method for load work up that makes sense to me all others are subjective or based on superstition.

That background where you live is amazing.

All good information but I am surprised that you did not talk about w860 for US869 ball powders. I have been getting maximum velocity with the lowest extreme spreads out of my 28 Nosler using 869 and it has done fabulously. I have heard you many times speak highly of W860 ball powders. I am getting 3200 ft per second out of it shooting a 195 grain bullet.

Hello Mr. Selby(and Mrs. Selby!), I am new to reloading my own cartridges, and I'm grateful to have come across the wealth of information you present here on your channel. Firstly, thank you! I am currently still in the "getting my feet wet" stages so am focusing on developing loads for my pistol calibers first and foremost. I have realized that I need to get myself a chronograph, so I am saving up for one now. Is the method the same of measuring cases with a .00005" micrometer for both pistol calibers as well as rifle?

Beautiful background

THANK YOU!! The 300 in a mark V action, just what I've been looking for! Randy, a guy named Larry Willis makes a collet die that squeezes the belted magnum cases back to fit... after a few loadings, the regular sizing die can't squeeze the area just above the belt back to size and the cases won't chamber smoothly, if at all. His website has the details about this collet die. WillyB

Any Reloader powders like R- 22 and up for your .300 Weatherby? I settled on R-22 w/a Fed 215 for my .300 WinMag. years ago. Those measurement practices on the are very interesting! I’d love to hear your thought on case neck tension with regard o accuracy and load development. This is a tremendous episode. Sincere thanks and appreciation!

Thank you Randy for the content I really do appreciate all of the information and I hope that you know you’re making a difference for a lot of us who are trying to become legitimate handloaders. Do you have any advice on how long to hold the case against the camphor and deburr tool, and does that change neck tension if I have a steeper angle camphor? It sure would be nice to find a video from someone who knows what they’re doing to show the entire process from depriming and cleaning cases all the way to shooting them again. Thank you again for your time and efforts.

Here's some thoughts with the 30-378 weatherby utilizing a 1in12''twist rate and a 28'' barrel to drive lighter 308's such as a 155 BTHP for different hydrostatic shock and flatter trajectories

I wish you would write a reloading book, you have a unique understanding, and a vast knowledge. Thank you, and God bless.

Thanks for the great information. How important do you think case manufacturer is? Do you mix case head stamps for a given load?

Hello sir, I will be using this advice this winter to reload for my 25-06. I can no longer stand paying $50+ for factory ammo that I cannot get to shoot less than 1-1.25 “. I don’t shoot competition but i hunt, and I like my rifle and ammo to shoot the best it can so I can put a bullet where it needs to be. I have H4831, and IMR 4350 to use with 110gr Nosler AB or either Barnes TSX or TTSX 115 gr. Now hopefully the Barnes shoot nicely but the recommended twist rate is 1-9, when my rifle is 1-10 so do you think they will be ok with my current twist rate?

What i wouldn't do just to have a smidgen of your knowledge. Will the techniques in this video regarding the measuring of the case head work with standard non magnum ammo Ie. 30 06? Thank you for all the great videos and the excellent information

Randy, I have been wondering specifically how you perform your case head measurement technique that you had previously mentioned in other videos, and this video confirmed that for me. This will help me a lot as I start loading for magnum rifle cartridges in the near future. Thanks for all the insight and info and sharing your years of experience honestly and graciously with the world. My only question- Will this technique also work for non belted cases? Thanks again and God bless brother

Great info as always Randy! Would you measure in the same area with non-belted cases and is the .0005" expansion the standard for all rifle cases ? Thank you.

Hi Randy, Love your videos. How much head expansion would be acceptable on a non magnum rimless case such as 270 Win. ?

Randy, Do you always pick the powder work up to improve your accuracy before you touch the seating depth at 100 yards?

H1000 works great in my 7mmstw

So if working up a load and arriving at a given velocity range that shoots the lowest extreme spread and we then want to adjust seating depth beyond Saami COAL to see if it will improve, should we aim for the same velocity when seating longer or does the whole thing change?

So if I heard correctly, from this very informative video, MAXIMUM powder charge is found and THEN changing to a different primer and possibly deeper seating depth too? I thought that was a no-no safety wise.

I get what Randy is saying but this day and time we’re lucky to find primers or particular powder in stock. If I waited for the “best” combos of components I’d never get to shoot 😢. I just like burning some powder rather than none.

Randy, do you measure a regular rifle case there same way you measure a belted case?

Hello Randy I was wondering if you have any suggestions on bullet weight and power for a 6.5 Creedmoor to deer hunt at 200 yards and in I would appreciate any help you can give me on this matter and thank you for your time and effort information is greatly appreciated

Very nice.. how about non belted cartridges? Thanks

I am 50 years old and just now getting into reloading, the only powder I could find was 7828 ssc. So I bought about 10lbs of it. I hope I can use the ssc for something.

Randy I agree that Barnes TTSX bullets are accurate performers. Most of my testing has been with 7mm bullets.

I understand your approach here, and I'm wondering, if we ethically limit our range, say, to 300 or 400 yards...what do we really need our rifle to do? 3-4 inches is an moa out there. Is that enough? The reason I'm asking is, what are the added stresses to the firearm really gaining us in terms of clean kills? Most of us cannot afford to waste barrel life chasing unnecessary precision.

Concerning the weatherby cartridges and given the factory freebore, is it just best to follow the reloading books as far as seating depth/COAL? I usually load to that however can much be gained by varying seating depth how much should it be done, up to mag length obviously but how short?

Thank you sir. When you mesure case head expantion,it is on virgin brass or used brass??? Do you mesaure yust head of brass or you combined with other signs of pressure like primers or havy bolt lift????Have you any situation when the brass show high presure but the primer or bolt lift is ok??? You did not explain that,when case head show pressure,what is going on with primer??does he show presure??. Sorry on my english righting. Regards from Croatia.

Great Info! Randy does the micro reading stand true for non belted cases? As I will assume that in that, I would measure the actual case head of say a .270 or at the base just in front of the head?

Hi Randy have you tried any of the new hammer Bullets

Wow don't look much like home in November. Possibly August- early September. God I miss home

Do you ever change the seating depth from what the manual suggests to improve accuracy? ? ?

Would those three powders you mentioned work well with the .257 Weatherby? I’m new too the Weatherby Cartridges.

I’ve never tried to load the nosler accubond LR. Any of you have any tips concerning bullet jump/seating depth with these bullets? I’ll take any and all advice

What are your thoughts on retumbo? I have found it fairly close to h1000

👍

Hi, I am not reloading yet, but Im watching as much as i can on the sunject. You say that those cases allow one half of a thousandth of case head expansion, is that just for those cases or any rifle case? I'm asking because I would like to know if that would be the same for a 45-70 case...and if not, how do I determine what the maximum safe case head expansion is for a 45-70 case?

I use a cci large rifle in my 7x57 Mauser can i change to a cci magnum primer without having to drop powder charge

What (if any) caliber rifle stands out in your memory, with the most impressive one shot kills, small/large game or both. ??

I love H1000 in my 300 Win Mag... But right now you'd have better luck finding a hen's tooth in a pile of 4 leaf clovers than an 8 lb jug of H1000

Howdy sir, when loading 308 in a barrel shorter then 20 inches do you think the powder should change and if so what powder would you suggest? im gonna be using accurate 2520