[kraigwy]

Some powders work better with reduced loads then others. I do a lot of shooting with cast bullets, a lot are subsonic.

The powder that fills more of the case is going to be better. Two of the best are Trail Boss and 5744. SR 7625 works well too.

4895 also works well, the Army used it squite a bit in reduced loads.

Also some cases lend themselves better to reduced loads do to the size of the case. For example you're going to get better results (lower velocities) with a 30-30 then an '06.

A lot depends on what you want to do with the load and how far the target is. All are going to make noise when you shoot them, Subsonic normal refers to being below the speed of sound. It doesn't have to be below the speed of sound at the muzzle as long as it is at the target.

Meaning you need to add a ballistic program with your reloading data.

Might just be better off going to a pistol cart. in a rifle such as 38/357, 44, or 45 for the short range targets.