Originally Posted by
LtDave
I've tested these in several S&W .44 mags and an OM Super Blackhawk. All have shot sub 2" out of one or more of my guns at 20 yards.
All loads used the SNS Casting 240 gr polymer coated bullets and Winchester LP primers. All were pleasant to shoot out of 4" guns.
Red Dot 6.4 grains
Power Pistol 8.7 and 9.5 grains
Bullseye 4.9 grains
HP38 7.5, 8.5 and 9.2 grains
Universal 7.8 and 8.4 grains
Clays 5.7 grains
WSF 8.0 and 9.1 grains
The most consistently accurate load for me was 6.4 grains of Red Dot, followed by Power Pistol, either 8.7 or 9.5 grains dependent on the gun.
The Red Dot load should run around 900 fps. Power Pistol loads should run 950 to 1050.