Doug,
I routinely compress as much as .43" and have never seen this effect in my .45-2.6. Nor have I ever heard of this problem before. Generally, swelling the case from over compression results to the point it won't chamber if you go much over this but Bill Bagwell has compressed over 0.5" with good success.

I've done this sort of compression with Swiss and Goex from 1fg down to 3fg.

Grease cookies are not used by the vast majority of people that shoot grease groove bullets. However, as an advocate of paper patched bullets, I use them routinely. Depending on the purpose of the load, the lube in this application may be as thin as 0.6" or as thick as 0.375".

Brent

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BrentD, (Professor - just for Stan)
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