Shoulders Problem

[slydo]

Hi guys... I'm a newbie in reloading BUT I did read, view, try almost everything
I have 60 once fired nickel cartridges 300 WSM from:
Win Ballistic Silver tip 150 Gr @ 3300 fps
Browning BXR 155 Gr @ 3260
The PROBLEM is the shoulder is 0.008 - 0.0012" forward
After running them with LEE and/or RCBS FL die... the shoulder WON'T BACK OFF...
All the rest is with in the specs from unfired cartridge and/Saami
I even tried to put some fillers gauge up to 0.015" between the cartridge base and the shell holder. . Only the mouth gets smaller but the shoulder won't budge
Any helpful tricks?
Thanks you all
From Québec with love

 

[M-61]

the shoulder WON'T BACK OFF.

Don’t understand
Are you trying to ‘ bump’ the shoulder?
What are you measuring?
Confused

 

[bozo699]

I don’t understand
Wayne

 

[bozo699]

If there .012 to long they couldn’t have been fired from your rifle, the bolt wouldn’t have opened
Wayne

 

[Kevin1990]

Sounds like you can't get the correct shoulder bump to me. When you resize the brass only the neck is being worked and the shoulder is not "backing off" meaning it's not being bumped back to original spec. Is that correct?

 

[C.E.Smith043]

Grind some off the shell holder

 

[slydo]

Don’t understand
Are you trying to ‘ bump’ the shoulder?
What are you measuring?
Confused

Yes I'm trying to BUMP the shoulder
Of course they don't feed with +/- 0.010" too long forward

 

[slydo]

Sounds like you can't get the correct shoulder bump to me. When you resize the brass only the neck is being worked and the shoulder is not "backing off" meaning it's not being bumped back to original spec. Is that correct?

Yes Sir that's correct

 

[slydo]

If there .012 to long they couldn’t have been fired from your rifle, the bolt wouldn’t have opened
Wayne

They were ALL fired from the same MY rifle no problem at all to eject them

 

[slydo]

Grind some off the shell holder

I did insert filler gauge up too 0.015" between the shell holder and the cartridge to mimic grinding off the die ... Only the mouth gets smaller

 

[Murray Brook]

Can you chamber a fired round ( before sizing). Also if it were me I would not use nickel plated brass.

 

[dellet]

If the die is bottomed out on the shell holder and putting a feeler gauge under the case shows that the neck is getting smaller, it almost sounds like you have the wrong die. The neck needs to be smaller all the way down to the shoulder before it can begin to start to be sized.

Can you post a photo of a piece of brass before and after sizing?

 

[slydo]

Can you chamber a fired round ( before sizing). Also if it were me I would not use nickel plated brass.

Nope... Fired shell won't feed in anymore

 

[Bill Norris]

Nope... Fired shell won't feed in anymore

Nickel plated brass is very hard to get a good solid set of numbers with anyway but that really is odd no doubt.

 

[slydo]

If the die is bottomed out on the shell holder and putting a feeler gauge under the case shows that the neck is getting smaller, it almost sounds like you have the wrong die. The neck needs to be smaller all the way down to the shoulder before it can begin to start to be sized.

Can you post a photo of a piece of brass before and after sizing?

Thanks for your concern

 

[slydo]

Thanks for your concern

2 different dies (RCBS + LEE) having the same problems?

 

[C.E.Smith043]

Almost looks like the wrong die

Or using the wrong ammo in that chamber

 

[LCazador]

This is a common problem with the WSM cartridges. Winchester must be loading them pretty hot. So hot that the head is expanded beyond the ability of any sizing die to restore the head to proper dimension. So what happens is the enlarged head stops the sizing from fully going all the way down and bumping the shoulder. Try going with new reloading brass and forget using that fired crap.

 

[J.d. Popkes]

Nickel stuff is meant to be left, laying on the ground, shining pretty for someone else to find.

 

[Bill Norris]

This is a common problem with the WSM cartridges. Winchester must be loading them pretty hot. So hot that the head is expanded beyond the ability of any sizing die to restore the head to proper dimension. So what happens is the enlarged head stops the sizing from fully going all the way down and bumping the shoulder. Try going with new reloading brass and forget using that fired crap.

Great advice. Throw the nickel stuff in the garbage can. It will feel at home.