The Model 48 is a K-frame - Think K-22 Magnum. It was offered in 4", 6" and I believe in the 8" barrel. [Edit] 8 3/8" barrel.
The Model 51 is a J-frame offered only in the 3 1/2" barrel length.
I believe the heavy bullet 22 Magnum is the way to go in the short barrel revolver.
From the 3" barrel Model 51 I average just short of 1,021 fps with the 50-grain bullet. This Federal bullet opens up and retains weight well. It has been a skunk stopper for us.
I do not care for the 22 Magnum for use on Raccoon in motion or Porkupine anytime but I know of others who have good success with the cartridge under these circumstances.
My Marlin 883 with 22" barrel will push the 50-grain bullet 1,470 fps. I consider this a good critter combination.
For the 40-grain bullets I prefer the 40-grain Winchester JHP load. These will just break 1,300 fps from the 6 1/2" Ruger SSX and it is a good load.
The Winchester bullets measure .2245" and are the most accurate 22 Magnum loads I have shot in a variety of rifles and handguns. The CCI 22 Magnum bullets run about .2235". Some 22 Magnum rifles have smaller bores and these shoot well in them.
Unless Ruger has changed they used a 1-14" twist. S&W used a 1-10" twist.
Last edited by william_iorg; 08/25/14.
