Using RMR 124 RN FMJ bullets in a 5\” Colt Gold Cup Trophy

No loads listed showed any primer flattening or other signs of excessive pressures.

Unique – mixed brass, Win primers, 1.270 OAL
5.6 gr – 1176 fps
5.9 – 1215
6.2 – 1244

Accurate #5 – mixed brass, Win primers, 1.270 OAL
7.0 gr – 1088 fps
7.6 – 1130 (most accurate)
7.8 – 1212
7.9 – 1225
8.0 – 1258

Accurate #7 – Starline brass, Win primers, 1.260 OAL
9.1 gr – 1293 fps
9.3 – 1296
9.5 – 1356
9.8 – 1374
10.0 – 1397