I asked this question in the Revolver Forum and though I might get some more answers here.

Please excuse the elementary question but, higher grain magnum loads are less powerful than lower grain loads? Why would higher grain magnum loads be better/safer, less hard on a model 66?

Also how does grain count affect power and recoil? Does higher velocity translate to more power and more recoil? I know very little about grain count and velocity. Somebody school me please!

-Dave