Wonko;
Very good charts. "EVERYONE" notice in particular that last chart comparing Red Dot to PB. The Red Dot load showed about 12K psi with the PB load showing about 9K . Graph was only divided in 2K increments but this is extremely close. This thus gives about a 333% increase in pressure for the RD load. Now look at the Recoil Speed comparison, abot 6 for the RD & 5.8 for PB or an increase of about 3˝% for the RD. Pressure increase is thus about 10 times that of the recoil increase.
I stand behind my hypothesis that the main determining factor RE spring or cracking a frame is shot weight, not pressure per se. You can throw in all the extreme things you so desire to which are not relevant to the original question of 6k vs 8K. Flattening a rifle primer at 60+K psi really doesn't have any bearing on this discussion.
Sure one can load a case full of detonating powder & blow a gun to smithereens without even moving the charge, but that is mere stupidity & again irrelevant.
