Great info, I don't do Facebook at all, just to remove unnecessary drama from my life..people will argue about anything

I've seen this happen with a 225 Winchester chamber. My chamber is VERY generous (maybe cut with a brand new reamer), but still technically within SAAMI spec. My (first) resizing die was squeezing down my fired cases to minimum SAAMI spec. This meant my cases were going through a lot of expansion during the firing process, and a lot of pressure was needed on my reloading press to get the case back down to a size that would fit the tighest spec chamber. The end result was I was losing a lot of 225 Winchester brass to splits...and that stuff isn't easy to find! My immediate solution was a Redding neck-sizing die, since the brass coming out of my chambers springs back quite a bit and feeds back into the chamber very easily, without sizing the body of the case. I also sent a couple of fired cases to Redding and they made me a custom die for sizing the body...I think it's called a collet die? It wasn't cheap, but neither was trying to replace all of the split 225W brass I was losing!

I've been reloading for over a decade and still you school me with nearly every video you post. Thank you for sharing!

Erik, love this video. These are the facts, and they can’t be argued. Thank you for putting this out there for people to learn from.

I see someone that has production going and under control, three thumbs up!

Erik, excellent explanation of what we need to understand when bumping back the shoulder.

New to long range loading. Your content has helped me avoid a lot of mistakes and what to buy.. Thanks for all you do..

What a fantastic presentation rendering this topic crystal clear. THANK YOU !!!

Erik, as one of your patrons, I have been busy and not yet up to date with your current videos, but I do want to thank you for your in detail explanations and your humble approach. Your videos are outstanding and please keep them coming. I have learned a hell of a lot from you and you have my respect. Thanks again.

Erik just want to thank u for taking the time to want to help us better understand world of long range reloading. Keep the interviews with great shooters coming very interesting information.

I enjoy how you simplify the process, there are a couple of other channels that are way more technical, which leads to re watching. Keep up the awesome content

Beautiful job explaining these concepts. Thank you!

I keep finding these gems of knowledge! Reloading seems daunting to get into but you find a way to make it digestible. As an aspiring reloaded I value the knowledge you give us for free. You could be doing the "For all the tips and trick goto my executive class..." Nope, "Hey, let me correct a misconception." Thank you Sir.

Good information Erik. It actually brushed up some old reloading info i hadn`t thought about in a long time.

Thank you again Erik. Especially for the SAAMI site info.

Great info! I like how you addressed the base of the cartridge expanding. I had a FL die that wasn't sizing the base enough, and now I have a couple hundred clickers. Once they went 3 firings, they were done. New die, all better.

Very informative and helpful. Your content is always grounded with facts and common sense. Thanks

Very well said! I totally understand and agree with you, I always bump my shoulders .002” and have no problems😎

Excellent explanation. I have one of those wildcat/improved rifles in 6.5-06 Ackley Improved. Really enjoy the entire process of sizing & fire forming the brass to get to final dimensions.

I’ve been sizing this way for years. I really like the way you articulated how SAAMI specs work

Erik, You do a good job. Just for info on the SAAMI drawing the bottom drawing for chamber, the top drawing is cartridge. HS chamber is 1.820 max 1.810 mi. HS cartridge is 1.814 -.007

Love your content! I've just started reloading and have followed what I've learned from your videos and the very first batch of reloads i I did produced average 1/2 moa groups!

It's good to have a straight forward guy like yourself to clear up the mud. Reloading is great hobby if folks don't suck you into all the rabbit holes they create over a relatively basic task. Wish I found you when I first started reloading.

Awesome info man love your content definitely helped me out heaps getting back into reloading use it for both my work guns and my long range gun works awesome 👌🏻

Erik, Good to see you producing content again

Excellent explanation of what shoulder bumping is when sizing brass..Thanks, I learned a bit here.

Great information, Erik. Many shooters fail in the common sense aspect of loading.

Thanks for the video. You do a good good job of explaining the details. I've learned a lot from you.

I, too, am just getting into this. Thank you for clearing up some of the confusion.

I watched most your videos, it all makes sense, or goes over my head good content. Clarifying harmonics are relative to seating depth was a huge help. And at the end of the day don't think I own a rifle that will shoot 1/4 MOA consistently so I just listen, thanks.

Good information as usual Erik.

Thanks for sharing. Excellent info and explained well👍👍

I always learn something new when I watch your videos

Great show, love this stuff

Thanks Erik great video, lots of information!

Anybody who has a machine realizes that.010 thou is a mile. Thanks for the video

Thank you, for your time.

Thanks Erik you always put it where the goats can get it, tons of info simply put. 2yrs reloading.

Eric, Great video. You just illustrated the problem in the reloading community. People forget that words have meaning and reloaders are often guilty of interchanging words that should never be interchanged.

absolutely superb video. very grateful.

you put out the best content out there. Period and your credentials say it all. Not stroking you. Just being real. Thanks for taking your time for us newbies!!!! Im the worst reloader ever. but eventually I will be able to hold may own. God willing!

It’s so nice learning from a master

Erik, you always amaze me with your knowledge, i never gave this a thought, i full length size my 6XC and my 6.5x47 Lapua, never gave SAMMI A THOUGHT!

I'm sitting here watching this while FULL LENGTH resizing!!!

I did learn something. I had one little question before I moved on and you nailed it, good job and thanks.

Great video!

Thanks teach! Makes it easier to understand

Thank you for explaining this Erik! I appreciate it! This never made sense to me.

I'm just getting into this type of shooting, & learning a lot from your video's. Thanks very much, very informative. How are the barrel tuners coming along?

Thanks for the video and information. Always learn something to make better reloads.

I love this guy he make me wish i found his channel when you could find reloading supplies

I really needed this. Some of the others are not necessarily wrong, they just don't have a thourough understanding of this like you explained. Thanks.

Love your videos very informative

Cheers Erik for the info.

Great explanation thanks Erik

Awesome video man. very well explained. My friends are going to shit themselves when i show them this. They are always on my ass about the way I size brass because I only bump the shoulder 3 or 4 thou for my AR but I have never had a feeding or function problem. Thanx a lot for taking the time to make these videos.

Thanks, I been Reloading for 33 years. You screw up my Mind but I understand and I understood. But still my mind is still going 90 miles per hours and I barely keeping it in check thanks for that.

Ah! Now I see what you're saying! Good info!

Very nice information Eric. Thank you for the great video and sharing this. Tight groups my friend. Stay well.

Good info! Thanks for posting.

What really counts is how well your dies brass and chamber work together. Make sure the variable's will work well together...

Always educational, thankyou.

Thanks man good info, been awhile

I downloaded the rifle and pistol spec's and use the print as my opening sheet for that caliber in the reloading notebook I use. They have been very helpful in understanding my reloading efforts. This practice is highly recommended..................... Thanks for the video ............ enjoy

Your 100% correct and now I get it. I wish you’d have some 7mm rem mag advise because I’ve spent a lot of time chasing my tail and shooting out good barrels but slowly watching your videos I’m getting there thanks Erik

Very good sir ! Absolutely correct ! Thank you very much.

Thank You Erik.

Pure gospel brother Eric ..... thanks for sharing your knowledge mate🤙

Thanks Erik for sharing your wealth of knowledge,I reload as well and have good results, each chamber is different to some degree, the cuter they use may not be in speck after hundreds of boring and chips that are not being cleared, getting acurcy is a fun challenge,they are all different.thanks again for the sharing enjoyed it.

Hi Erik Great video Mate very easily understood thank you, Steve from Australia

As usual, Awesome!

Love your videos thank you for the class

Agreed. I bump shoulder as little as possible. 6.5x47 is my new favorite, should've had one long ago.

Great information, learned something new .....again 👍

Thank you very much I love all your videos I've learned a lot from you

Good information Emilio

Thanks Eric.

obviously, none of these people that say any of this do any reading, studying, researching, calculating, or listening to pro's like yourself that have been there and done that. Thank you Eric, for helping all of us to gain the knowledge to be better shooters!

Thanks for the education!

I like that you went over one of these drawings cuz there are times where I'm like "wtf do they mean by that". Thanx for the tips

Awesome video thanks for the info

This was extremely helpful to me as young reloader. I have thrown brass aside several times when I couldn’t get it close enough for comfort to my desired dimensions, so knowing where to look up safe tolerances is going to be seriously helpful. I strive for bang on, but I need to be consistently safe and confident first.

Thanks Erik

You are 100% right. I had a mossberg mvp .223. I was only neck sizing my brass. I broke 2 extractors before I figured out what I was doing wrong. Cases were always getting stuck in chamber. I now full length size with minimum bump, for all my rifles. All is good. No more extraction problems.

Mr. Cortina, I appreciate your concise explanation of headspace it is truly a fact that many should understand. This is what I see many shell manufacturers doing and each shell's case headspace is easily checked before firing and after firing using the RCBS Precision Micrometer. After firing 17 Aguila 150 gr. FMJ .308 shells the fired case headspace is -1 under minimum headspace to +1 over minimum headspace. Maybe OK although barely within the minimum to maximum .010" range. There were 3 rounds that failed to fire actually there were a couple other rounds that I had to put in the chamber again to get them to fire. But, the 3 that didn't fire have case headspaces of -8, -13. and -15 below SAAMI minimum. Although I am not out to disparage Aguila this puts them in the case head separation range I would wager. I didn't measure the 17 fired cases but if one of the cases was -15 below SAAMI minimum and lengthened to 0 minimum headspace, I would deduce that if they had been loaded to minimum headspace they could have lengthened .005" over the maximum headspace which could have caused damage to my rifle or even a big Kaboom. Besides that the accuracy was bad. So, obviously, Aguila knows that at least with this lot of shells they are using brass that's below industry standards and maybe taking advantage of the shortages to get rid of brass that should have been melted down and recast to industry standards for hardness.

Love your vids, what about a shop update? Excited to see what you have done since you left us hanging lol

Great info erik, really enjoy you're content here (and on patreon) and learn a lot from you thank you. So would I be right is saying technically a fired piece of brass in a saami/ cip spec chamber, if it measures within spec after, it has been full length sized to saami spec? If this is true, going to have so much fun with this. 😄

Oh boy, your sure stirring the pot this time. Good job! I even learned some too. Thanks

Erik! I would like to see you go to an ammo manufacture plant to quiz them on all the arguments about case sizing etc. I think that would be fun!

Hey Eric, thank you for the info to that saami site. I have a 25-35 Winchester and I am so new to reloading that I have questions of tolerance not really made clear in the loading manuals. At least for me. Thanks again

"SAAMI don't tell me how to live my life" LOL That cracked me up... But seriously you hit the nail on the head with this one!!!

Hello from Australia mate !

One reason many of us reload is to be able to closely control dimensions of the case when reforming/resizing the brass to make it a pretty precise "custom fit" to the individual rifle's chamber to control headspace, seating depth (and things like bullet distance from the lands) and other dimensions of the loaded round, no matter which end of the SAAMI specs that particular chamber meets...either tight/loose or long/short. inside the pretty large variances in SAAMI spec tolerance to (hopefully) produce the best ammo for YOUR INDIVIDUAL RIFLE. As Erik pointed out on the SAAMI diagram he showed, there are allowances for variation in lots of the dimensions.The "limits" in the SAAMI tolerances exist for several reasons, a couple of which are: (1) To allow ammo to work safely in SAAMI chambers and (2) To accommodate what are known as manufacturing tolerances, which allow whatever item is being made to not have to be made to ONE VERY PRECISE measurement, which is usually EXPENSIVE (which can often mean that is will not be marketable at a price point that will allow it to be competitive in the market). So, you see that doing a .002" shoulder bump as a matter of routine for all of your reloads will NOT produce the ideal case (and, therefore, things like case life and accuracy on target) for all of your rifles...it pretty much has to be done to measurements that derive from EACH INDIVIDUAL RIFLE to meet the shooter's requirements, however those requirements are arrived at.

Great Video! I had that exact argument with someone I work with. Your delivery was much better formulated. However, I hope he is watching this video and will now shut his cake-hole about resizing. Erik,... Just going to say it again: "Book" also, going to need that break in black.

You rock!

Also, with "no question ask FL sizing" I checked my .223 REM brass yeserday, that was sized with a regular RCBS FL and a RCBS SB X-Die, both sized on shell holder contact to -5 thou, so, so much for "bringing the case to spec" :-)

I used to over work my brass a lot. I was talking to my gunsmith about reloading and setting up dies and what not and he turned me on to the way I do it now. I take whatever I'm loading for at the moment with a case from that chamber and size it down until it fits that chamber. Then I lock it down and go. Ideally one would use the correct measuring tools but this has worked well for me.

All very true for a rimless case. Where bumping the shoulder is even more important is with rimmed or belted cases. Here I suspect the tolerances even angles of the shoulder may be much looser. They headspace of the rim or belt thickness. It may be possible with these cases that if you only bump the shoulder you may or may not fully size the rest of the case because some of them have a lot of body taper. That means the case may fit the chamber more tightly that with a full size but your brass will last a lot longer.

What i like to know is who would give you two thumbs down with all the information that you give out. Very good information thanks its help me a lot my SD were 15 to 20 now I’m down to 5.5

Very well said