Quote:
Originally Posted by Paul Harm
The resistance when a shotgun shell goes off is the weight of the wad and shot and the crimp depth resisting opening.
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Anyone know or care to guess what the difference is between a once fired case and one that has been reloaded 5, 6, 7 or more times? I believe it is not very substantial but will be less. Want to help lower pressure a little bit with a star or folded crimp, reload well used hulls.
Take a look at this article about the difference crimp depth can make, there is a chart about 1/2 way down the page. The difference between .030 and .090 for the same reload was nearly a 4000 psi increase, yikes!
http://www.armbrust.acf2.org/primersubs.htm
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