I've used the Oregan Trail 158's in both a 4 in Ruger Security Six and my 6 in 686-nada, They were great over 13.5 grains of 2400. My MBC and Dardas 158's were terrible with this load and only a little better with 5.5 -6.5 grains of Unique. You can get 158 fmj and jhp Zero's much cheaper than the Oregan Trail. The 41 mag 215 from Oregan also worked great with near max loads of 2400. At their price point, I never tried the OT's for general purpose/plinking loads.