In Ruger 1B;
100 grain Hornady HP
Remington cases (trimmed, neck turned and flash de-burred)
Federal 210 primer
52.0 grains of IMR 4064
Chronographs 3570 fps. (80 degress F)
5 shots - .411" @ 100 yards
120 Nosler BT
50.0 grains IMR 4064
Chronographs 3220 fps (80 degrees F)
5 shots - .482" @ 100 yards
140 grain Remington SP
49.0 grains IMR 4064
Chronographs 3140 fps (80 degreesF)
5 shots - .760" @ 100 yards
THESE LOADS HAVE PROVEN SAFE IN MY FIREARMS HOWEVER...REDUCE BY 10% AND WORK UP FOR SAFETY.