Description
Adjusting a 7/8-14 threaded sizing die (or threaded seater die) to the exact shoulder bump you need is a laborious process. This set of seven 7/8” die shims enables you to set the die up once, then adjust the die in small, exact increments without loosening the die lock ring and starting over. We suggest setting up all threaded dies with a .005” or .006” shim under the lock ring for the initial setting. Sizing .001” more or less from the initial setting is then as simple as changing the shim.
Now made from stainless steel!
2 Reviews
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Sizing shims 7/8-14
I have been having problems with shoulder bump. Bumping too far which results in case cracks and I had a separation. Have given up on Competition Shell Holders. These shims work well. I have two different 308 rifles and by swapping shims I can easily switch between the two rifles. And control bump to one thou. I had a question and the company owner emailed me back. --jim
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Sizing Die Shims
The rings have no notches. Very uncomfortable.