Need quick help RE: #43 RCBS Shell Holder

If you are trying to shorten the case it will work those shell holders are made less thickness so you can shorten the over all length so your shoulder isn't hitting
 
sjt18 said:
The die manufacturers recommend raising the ram until it touches the bottom of the die then lowering the ram and turning in another 1/4 to 1/3 turn. The instructions for Lee, Hornady, and RCBS have similar recommendations.

I am concerned about crushing the case neck/shoulder. I've done it unfortunately.
Click to expand...
Close, but not quite. The instructions say to raise the ram, with a shell holder inserted, to the top of the stroke. Then screw the die in until it contacts the Shell Holder. Then lower the ram slightly, screw the die in about 1/8 turn and tighten the die lock ring. This will give you cam over and will size a case to saami spec.
 
Not all shell holders comply to standard manufacturing measurements. Found that out after destroying a 204 Ruger decapping spindle. Die set-up worked fine for one shell holder, but ruined the spindle with the other.
Destroyed Spindle 015.jpg

Destroyed Spindle 010.jpg
 
Well if you need one I got one from an old WSSM I had let me know if you want it. Just pay the shipping and it's yours
 
Nimrodmar10 said:
Close, but not quite. The instructions say to raise the ram, with a shell holder inserted, to the top of the stroke. Then screw the die in until it contacts the Shell Holder. Then lower the ram slightly, screw the die in about 1/8 turn and tighten the die lock ring. This will give you cam over and will size a case to saami spec.
Click to expand...
Pretty much what I meant. Followed the instructions to the letter. Still at least .006" off. My gunsmith actually sized and loaded a case for me. Using my comparator, the headspace was 1.724. He used an RCBS die set. I used the same die set and my resized cases measure 1.736. I haven't had this trouble on anything else.
 
sjt18 said:
Pretty much what I meant. Followed the instructions to the letter. Still at least .006" off. My gunsmith actually sized and loaded a case for me. Using my comparator, the headspace was 1.724. He used an RCBS die set. I used the same die set and my resized cases measure 1.736. I haven't had this trouble on anything else.
Click to expand...
Did you both use the same shell holder? Not same number, but same shell holder?
 
sjt18 said:
No. I did mine at home. He did his in his shop.
Click to expand...
I took a few thousandths off my shell holder, hold it in a belt sander for a few seconds.
Easy peezy, they don't have to be the exact height or perfect just shorter.
 
Bitteroot said:
I took a few thousandths off my shell holder, hold it in a belt sander for a few seconds.
Easy peezy, they don't have to be the exact height or perfect just shorter.
Click to expand...
Had .008" taken off a shell holder. Die now reaches and forms the shoulder. Thanks for this recommendation. It saved me money, time, and trouble shipping stuff back to the manufacturer
 

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