I recently got a Charter Arms 38 Undercover snubby, and I am looking to make my own reloads with a Lee Loader kit. I ordered some casted 148 grain SWC bullets from RimRock, and have some Titegroup and Accurate 2 powder. I want to reload VERY MILD loads to center-of-mass practice on a 30 foot target. I was wondering how many grains of these powders I might use, and how far I am supposed to seat the bullet into the brass. Please advise...