Can some kind soul with Quickload, please, calculate some approximate chamber pressure for some potential Trail Boss loads to shoot out of 5.56 5.5" SIG MCX Rattler?
Bullets: Speer 1029 Varmint .224 50gr JSP & Speer 1023 Varmint .224 45gr JSP
Loads for each bullet: 4,5,6 & 7gr of Trail Boss...