Your firing pin is skinnier than the hole it pokes out of in the bolt. The primer will extrude back and into the gap between the two, hense the little ring around the strike mark in the primer. Nothing unusual.What do you mean? A little gap between the two?
Those primers look very round. I would draw no conclusion of excessive pressure on those.
Youre using the 70g or 95 Targex? What powder? 2209? ADI has 42g for 95g as max
theres a smear on the base of the case from camming the bolt over. I think you need to FL size your brass first. Does an empty case chamber and eject easily? When you say bumping do you mean extra force to chamber the round? Tight bolt?overall length may be close to the lands as the round required bumping to get it to chamber.
You really should learn how to find your lands first and work back from there rather than guess. Its pretty easy. Whats the rifle?
accuracy is king. Forget speed.Sure not going to be 3100 like factory ammo claims but very accurate!
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