When seating primers, not seating deep enough will obviously cause failure to ignite, but if seated too deep/hard will it cause weaker ignition? testing loads on 22-250, 30-06 and 260 over the weekend I encountered a couple new problems first being odd fluctuations in velocities and poor accuracy. With all three rifles (all bolt guns) there were lesser velocities on some rounds, ladder testing the loads and increasing in charge weights, I first thought I was near max load because .5gr increases weren't showing the usual increases in velocity but kept shooting because there was no sticky bolts, no ejector marks, and no cratering. As I was logging the data I remembered once seating the Primer too lightly and the resulting click (got me thinking that i subconciosly sqeezed a little "extra",) could it be that I pushed the anvil just a little further on some rounds resulting in weaker ignition...
Side note, I usually spend most of my time priming pre-occupied with the impending doom of my OCD powder weighing methods... I do benchrest prep on cases, and ensure seating depth, neck tension and the like are uniform... the only area I "relax" on is priming, am I setting myself up for failure by not applying the attention to detail priming apparently requires or could it be, I need to sort primers...
Side note, I usually spend most of my time priming pre-occupied with the impending doom of my OCD powder weighing methods... I do benchrest prep on cases, and ensure seating depth, neck tension and the like are uniform... the only area I "relax" on is priming, am I setting myself up for failure by not applying the attention to detail priming apparently requires or could it be, I need to sort primers...
