Quote:
Originally Posted by Dean Romig
A 2 5/8” chamber was made to shoot 2 3/4” shells. The shell when fired, would open about 1/8” into the forcing cone. The belief was that this would provide a better gas seal.
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Dean -- if a 2 3/4" shell actually measures 2 1/4" (see my picture in post above) and when fired measure less than 2 5/8" (see second photo) how does it "open about 1/8" into the forcing cone?"
By my measurements the fired case doesn't even reach the forcing cone. So there is no way they could create a better gas seal. Maybe loaded roll crimp cartridges are longer than loaded folded crimp cartridges? I don't have any to measure.