Quote from: blaster on February 07 2021 06:37:38 AM MSTI also substituted SP primers with SR primers in my 9mm loads, and chronographed them. There was no appreciative difference between the two concerning velocities.
a few weeks ago I experimented with loading a bunch of 9mm with small rifle primers. (I have around 7000 sm. rifle primers and 400 sm. pistol primers on hand) I shot them out of 5 different 9mm pistols. two of which were striker fired. they shot 100% reliable out of all the pistols. no misfires or light primer strikes. I didn't chronograph them but they sounded, felt and hit the same as the ammo loaded with the sm. pistol primers. I used to load my .223 powerhead ammo with sm. pistol primers hoping to get easier ignition as .223 power heads are notorious for not going off unless they hit a hard or bony part of a fish's head. seems I was just pissing in the wind. the sm. rifle primers don't seem to have any harder primer cup that the pistol primers. at least not enough to make a difference.