The RCBS 165 silhouette bullet is also worth a try. More recently, I got a second barrel that I have done a little load development with, and it does well with the 311291 and the same powder charge. My wife and I have shot bigbore metallic silhouette using the 32-20 Contender and Lyman's 311041 in front of 9 to 10 grains of the 4227 powders for many years. They'll still hold the 200 yard 10" gong every shot though. My 32/20s will hang with 2 MOA groups on a good day, but can open up to 3 MOA now and then.
My 25/20 is exceptionally accurate and will often produce 1 MOA groups for 10 shots and it holds well at 300 yards with a lot of elevation dialed into the sight. My revolver load at 945 fps is just supersonic in the rifles and is probably what you are looking for if you drop it to 4.0 grains of Unique under any of the 115 grain boolit designs. It does pretty well for accuracy in both rifles and revolvers.
One of the better commercial 32/20 115 grain boolits is the Oregon Trail product. I use plain base 115 32/20 designs for the lighter loads and the NOE 316299 with gas check for the higher velocities. The fast stuff is best fed something slower like Accurate 1680. Powders for a quiet subsonic load are usually either Bullseye or Unique. That has been the best boolit weight for me in these rifles and it does well from 900 fps up to just over 1,800 fps. In the 32/20 I use 115 grain cast boolits in both a Savage Model 23 and a Marlin 1894CL. My heaviest bullet in the 25/20 has been a 75 grain at as high a velocity that I can drive it at in a Savage Model 23b, so I can't help you with that one.
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