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ive seen test results with a 22 cheatah. that put pressures over 80,000. the primer was still in good shape ( not flat no crater) keep in mind that this round uses small match small primer .308 cases, so surface area of the primer is less. on the other hand i have had expanded primer pockets with a max load in a 22-250 ack-imp, only with fronteer brass, wich is very soft. as you work youre load up you will find that one of the increases in charge (tward max) will actualy decrease velocity. in my experiance my best accuracy was found below that point. be carefull.
tom
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