Originally Posted by backwoods83
Use a micrometer on the case head. Maybe I'm the idiot here that realizes that brass is malleable/ductile, and that if the shoulder, case body, and neck expand upon firing that eventually the primer pocket will as well, but I don't hear any bickering about resizing cases, so why all the BS about resizing primer pockets if that's all that's wrong with them. Just because the pocket is loose doesn't mean the web is busted.
If pockets are getting loose after one or two firings, the concern is not over the tightening of the pockets but rather what is making them loose in the first place: typically over pressure loading. The OP is getting 300fps + over non AI book max velocities. While not stated explicitly, the OP also seems to infer that these cases haven't been loaded to "normal" life-cycle limits. If he can buy a tool to tighten them up, great. I personally wouldn't, but I am conservative by nature when it come to reloading - to each his own. BUT - If he continues to run over pressure, he is playing with fire and that is not an opinion or a conservative fall-back.
My issue with your previous posts are that you are implying that loading to excessive pressures is no big deal: your friend has loaded over pressure for 7+ years with no issues, you believe that actions are proof tested to 2x SAAMI pressures (once? 1000 times?), you reloaded factory brass that had loose pockets, and brass is malleable so just twist it back to shape. That is all great, but far from empirical truth that loading to extreme pressure is safe. It isn't, and only one incident in a lifetime of shooting is one too many...
In the example of your friend, he reloaded cases 30+ times and tightened pockets 3 or 4 times. It is stated that his loads are known overpressure. If the OP has finger-tight pockets after 2 or 3 loadings, would a fair assumption be that he may be waaaay over pressure? Or as long as the cases mic out OK at the head would you think it is acceptable to run any pressure that doesn't gall the locking lugs or blow the action? While primers and primer pockets may not be a great indicator for pressure, common sense says you can't ignore them either. When viewed relative to velocity, book max, times fired, etc they can (and should) be viewed as a warning sign.