Extend Your Brass Life, How to Shoulder Bump - Reloading : EP 10

In this video, I will show you how to extend your brass life by bumping the shoulder. This method provides a better match to your chamber. Also because your working the brass less, it will prolong the life.

~ Please Like, Subscribe & turn on notifcations - It realy helps my channel.

[cerwynlljones]

Very well explained and demonstrated, thanks very much for this

[diggernash]

Excellent video.

For those comfortable with disassembling their bolt, you can remove the ejector spring and gradually lower the die until the bolt closes with very little resistance. The 2 thousandths bump you demonstrated is more straightforward.

[tedlofland]

Nice idea. I bump the shoulder on my semi-auto 556/223 four thousands and check the case with a case depth gauge. Works fine.

[PencilProper]

Feeler gauge! Great idea. You Kiwis are good for something after all ;)

[russellmiller]

The way you defined 'shoulder bumping' is exactly what it is. I wish I was aware of this happy medium between full length and neck sizing brass years ago. Although I haven't had any issues with brass resized to full length 4 times and neck sized 2 additional times with mid-range to upper loads for the 300 Winchester Magnum.

[geraldsmith]

Great idea for easy die setup... Thanks

[jacobcollins]

Great video!! This was extremely helpful!

[luvtahandload]

Good job on this vid, thanks. Never have used a feeler gauge to set up a die to shoulder bump but I do have a set of machined flat washers that go up to .010" and can be added to each other. These go under the die lockring. Of course, there is always Redding's Competition Shellholder Set to achieve the same results. Thanks again!
Another thing, sometimes you wind up with a rifle chamber and a standard FL die that are a perfect match. Firm contact with the Shellholder gives you perfect shoulder bump, no adjusting necessary. I have a combo like that, in a belted mag round, no less.

[mike]

Thank you, I have just found your channel and videos which I binge watched. I especially liked and needed the should bump video. I have always neck sized only and I did not want to FL size. But I could NOT work out how to bump the shoulders, without doing a FL resize. I will give it a go in the next couple of days and see how I get on, but need some gauges (just ordered).

[wheeler]

I’ve had issues between my Rem 700 & Savage 116 for my 7mm. They chamber perfect in my Savage, too tight for my liking in 700. I’m going to give this a try today! Thanks for the simple explanation!

[DARRELLGRIFFITHS]

i do similar with my the lee, although i don't adjust the die, just gently grip two gauges either side of the shell between the shell holder and the die on the standard set up. A lot easier and no faff. You can adjust bump by just inserting different thickness gauges on the fly. Eric Cortina could have done the same with his set up. Nice Vid.
My Tikka T3 .222 has 0.007" difference between fired and Die sized. Standard set up, just insert two feeler gauges, one left of the case and one right of the case as the gap closes, job done, 0.001" bumped.

[repairfreak]

Doesn’t bumping the shoulder back .002” with a full length sizing die still resize the whole body as well? Therefore bumping the shoulder back is still technically called full length resizing? From what I understand, SAAMI specification of head spacing of cases is taken from cartridge datum line on shoulder to base, and this measurement is many times a .010” range typically on many cartridges. So bumping the shoulder back .002” can actually be sizing back within SAAMI tolerance for headspace measurement, but just on the longer side of the SAAMI specification range for the given cartridge. Therefore I was told this equates to slightly less working of the brass “hardworking”, thus extending brass life.

[mostrogolf]

Very informative, love the use of the feeler gauge, makes toral sense. My question is will this technique work for a DI rifle / semiauto? I hear neck sizing is only good for a bolt action and not a semiauto, new to reloading and wanting to learn correctly. Thank you.

[mitchjohnson]

I have 308 brass fired out of 3 different rifles. My question is— if I take a case that was fired out of the rifle I intend to load for and use that case to compare and measure off of can I resize the cases that were fired by other rifles? I would obviously check each of them after resizing to make sure. Great videos! Very informative

[stufftokeepyouentertained]

I'm so confused, where is the rest of that car?

[garyh]

The only round I worry about brass life is the 303 British. Everything else gets full length resized (die turned down to touch shell holder). My ammo fits any gun of that caliber that I choose. Brass looks good, too.

[jpaulh]

DISCLAIMER: New reloader here. Can’t you technically put on the headspace gauge, put in a once fired case, zero your calipers and then keep threading in your sizing die until you get -0.002? Would that produce the same results?

[sadzo]

Hi, nice video, thank you!!!

Now, I am struggling and going crazy at this point...
I'm trying the reload my 8mm Mauser, BUT, no matter what I do, a resized case is longer than fired case and even with the hard stop on my LEE press its the same. I have tried Redding shell holders but achieved nothing, its the same length of the shoulder no matter which shell holder deapth size I use.

What am I doing wrong, or I have some problem with the chamber or something like that?


Thank you and keep up the great work it is helping greatly!

[Kiwi.Bits_n_pieces]

Cheers, thanks, made it clear. What is your take if you had annealed the case? (if you anneal?) do you only use that method with work hardened brass or do we think it doesn't matter? I only mention that because there will be no bounce back with an annealed case, I realise you did this a year ago, has your technique changed? again, cheers and thanks, hey the musics good lol lol

[kmiefyi]

I'll give this a shot, as i've had trouble with my 300WSM norma brass splitting on occasion. Good video, but could do without the music in the background (it's distracting).