I was under the impression that the " Russian" SRM were the hardest. I checked my notes and one common notation was I often hear a very quick click/ BANG with the Russians in a custom 22BR...CCI 450 s do not do this. No such in a rem 700 chambered in 223 AI. Firing spring tension difference, probably?I'll stick with my Wolf/Tula primers as long as they last. Also had good results with the CCI # 41 Mil. Spec. SR primers in my gas rifles.
Lloyd
I have never experienced that although I've heard of others that have. The only cartridge that those primers didn't perform well in was a 6.5x47L. I switched to CCI #450's and it started to shoot. The "Russian" sr-m primers work well in my Lapua sr primered Palma brass. All the cartridges with the exception of my 6AR are shot using Stolle Panda actions.I was under the impression that the " Russian" SRM were the hardest. I checked my notes and one common notation was I often hear a very quick click/ BANG with the Russians in a custom 22BR...CCI 450 s do not do this. No such in a rem 700 chambered in 223 AI. Firing spring tension difference, probably?