If you are looking for small groups,at least with a Kimber, the 35 Berger and 39 BlitzKing shoot just silly.
BenchMark and H4895 worked well for me.
X 2. The 39 BK is my all time favorite for the small critters and the 35 berger is my main staple for yotes.
I use the same powders above as well as RL-10X