First off you can use any 380 auto dies for ,38 S&W as outside case dimensions are identical. And .38 Colt is the same as the .38 S&W. Lee make dies Marks’s .38 S&W/.38 Colt and the sizing/recapping die in my set is marked .380 auto.

If you can’t find .360/361 bullets then you will probably be best served with a 148 gn HBWC. They expand the skirt to fit the bore. I have used both lead (Zero) and plated ( Can Pro) in my .38 S&W Victory.

I find 2.4 gn Mulwex AP50N gives nice mild recoil, cases drop free of the cylinder easily, and good 25 meter accuracy. Do not go over 2.5 gn, the load will be too hot for the calibre