Please note that the 'gun' used to fire these rounds was actually a locked-breach test barrel with 2.75" overall length. COL = 0.970" .32NAA trim-to length = 0.677" Hornady 60 grain XTP bullet with N310 powder 2.8 grain : WSPP = 1093 ft/sec, CCISPP = NA 2.9 grain : WSPP = 1042 ft/sec, CCISPP = 1079 ft/sec 3.0 grain : WSPP = 1116 ft/sec, CCISPP = 1115 ft/sec 3.1 grain : WSPP = 1126 ft/sec, CCISPP = NA 3.2 grain : WSPP = 1197 ft/sec, CCISPP = NA 3.3 grain : WSPP = NA, CCISPP = 1169 ft/sec 3.4 grain : WSPP = 1188 ft/sec, CCISPP = 1251 ft/sec Case bulged at 3.4 grains, testing halted Speer 60 grain Gold Dot JHP with N310 powder 2.8 grain : CCISPP = 1068 ft/sec 2.9 grain : CCISPP = 1094 ft/sec 3.0 grain : CCISPP = 1142 ft/sec Testing was halted due to lack of ammunition. No overpressure signs observed. Hornady 85 grain XTP bullet with N310 powder 2.9 grain : WSPP = 1007 ft/sec, CCISPP = 1032 ft/sec 3.0 grain : WSPP = NA, CCISPP = 1037 ft/sec Case bulged at 3.0 grains, testing halted