The classic powders have be mentioned - Bullseye, Unique, 2400. I have had very good results with these powders. I changed over to Win231 about 15 yrs ago. I really like the way it meters out of the Dillon so I try to develop loads for my pistols and revolvers using it.

The only other powder I use for 38Spec is SR4756 with a cast 158 SWC in my Dan Wesson with a 4" barrel attached. It really likes this load!!

My S&W revolvers did not group as well with this SR4756 loading.

JPG