I'm using a type s full sizing die for .338 Edge. The problem that I'm having is that the die doesn't bump the shoulder back. When I was adjusting the die further in, I noticed that it was crushing the case walls but still not bumping the shoulders. I'm using a Hornady headspace guage. Any ideas from you pro reloaders?
No shoulder bump
- Thread starter Berry228
- Start date
Help Support Long Range Hunting Forum
Buzzsaw
Well-Known Member
scrap the bushing die, go straight FL die?
gohring3006
Well-Known Member
What shell holder are you using?
Are you making contact with the die?
Cam over?
Are you making contact with the die?
Cam over?
Im using Redding competition dies. I use a RCBS Summit press and I went all the way to the bottom of the stoke. Then I ran the die in 1/4 turn further. But where I'm confused is that it's not bumping the shoulder back but its crushing the cases.
gohring3006
Well-Known Member
Once you crush the case, it would be hard to tell if you bumped the shoulder or not.
1/4 turn is to much to get a small .001-.002 bump.
You may want to smoke a case with a candle and back your die out and slowly turn it down watching to see what smoke you remove until you get to the shoulder bump you desire.
1/4 turn is to much to get a small .001-.002 bump.
You may want to smoke a case with a candle and back your die out and slowly turn it down watching to see what smoke you remove until you get to the shoulder bump you desire.
I'm using a Hornady comparator with the shoulder insert and measuring from the case head to the datum line, the measurement hasn't changed at all. But I can see the case is being crushed.
WildRose
Well-Known Member
Berry are you actually having a headspace problem as in difficulty in chambering a resized round?
Your chamber may be a touch oversized in which case bumping the shoulder back isn't necessary and could be causing other problems.
Remember you can't really compress brass, when we resize it has to go somewhere. We think of it as a solid but brass actually flows when we work it and if there's no where for it to flow, it can't compress and so something has to give, in this case it's crushing and miss shaping your cases.
Your chamber may be a touch oversized in which case bumping the shoulder back isn't necessary and could be causing other problems.
Remember you can't really compress brass, when we resize it has to go somewhere. We think of it as a solid but brass actually flows when we work it and if there's no where for it to flow, it can't compress and so something has to give, in this case it's crushing and miss shaping your cases.
After running the brass through the die, I try to chamber the brass, It's tough to chamber the brass
bigedp51
Well-Known Member
- Joined
- Dec 10, 2010
- Messages
- 1,022
Berry228
When I read 243winxb posting above and saw his photo alarm bells went off.
Are you using the Redding Competition neck sizing die with the sliding body sleeve or are you using a standard type S die?
The competition neck sizing die is not designed to bump the case shoulder and the 3 die set comes with a body die to bump the case shoulder.
Sorry, but in your first post you said type S die and then you said competition die set. The standard type S die would be around $50.00 and the competition die is over $100.
Try what 243winxb said to do in his posting and see if you get a crushed shoulder or if it bumps the case shoulder "IF" you have the type S die.
Below a competition 3 die set and the neck sizing die has a sliding sleeve that holds the body of the case like the seating die does.
I was forming Lake City 7.62 cases to .243 in a standard Redding FL die and crushed a case shoulder and it was caused by not enough case lube. Another possibility are tight necks and the expander pushing down on the neck on the up stroke of the press.
My 2 cents and WAG
When I read 243winxb posting above and saw his photo alarm bells went off.
Are you using the Redding Competition neck sizing die with the sliding body sleeve or are you using a standard type S die?
The competition neck sizing die is not designed to bump the case shoulder and the 3 die set comes with a body die to bump the case shoulder.
Sorry, but in your first post you said type S die and then you said competition die set. The standard type S die would be around $50.00 and the competition die is over $100.
Try what 243winxb said to do in his posting and see if you get a crushed shoulder or if it bumps the case shoulder "IF" you have the type S die.
Below a competition 3 die set and the neck sizing die has a sliding sleeve that holds the body of the case like the seating die does.
I was forming Lake City 7.62 cases to .243 in a standard Redding FL die and crushed a case shoulder and it was caused by not enough case lube. Another possibility are tight necks and the expander pushing down on the neck on the up stroke of the press.
My 2 cents and WAG
Sorry for the confusion, I meant that I'm using the redding competition shellholderso and the type S FL size die that came from defensive edge
WildRose
Well-Known Member
I think the suggestion of smoking a few cases and working them slowly and gradually into the chamber and checking to see where the smoke is rubbing off as you work to fully chambered.
Get that data and maybe we can figure out exactly where the problem is. I've never had the problem turn out to be the shoulder itself, usually the necks are too long or too fat in which cse it's ether neck turning, neck trimming time, or quite possibly time for a slightly smaller diameter expander.
I'm assuming you have no problem at all chambering factory ammo, am I correct?
Is this a straight SAAMI chamber or custom?
Buzzsaw
Well-Known Member
take it back to your builder, these ideas aren't working
