Hi Jeff, sounds like you've got a score rifle there? Most folks who are using the 30 BR in cast bullet matches are using a much faster twist to shoot 190-200 grain bullets. With your setup I'd be looking at the gaschecked version of Lyman's 311008, (don't remember it's number but it's the same bullet with a gascheck, around 115gr.) or the Lee 115 flatnose and the 120 roundnose. RCBS may make something similar, but I've never used one of theirs. Pretty much anything that would work in the 32-20 or 30 carbine is what you want. At least water quench them, and for more speed they'll need to be heat treated. Run them at 2000 - 2500 depending on your barrel, lube, heat treating ability, etc. The normal 30 BR powders will work fine, i.e. VV N133, Benchmark, etc. Done right you should have one fine shootin' machine!