After who knows how many rounds of BP through my 60 RM conversion, I tried some smokeless.
Load was 200 grain bullet, 4.2 grains titegroup, CCI primer and Wolf primer, starline brass.
The published data suggest I should have gotten an average velocity somewhere around 750-800 FPS, what I got was 648 FPS, and 663 FPS. Published data list 4.0 grains start and 4.8 grains max. Wondering why the big velocity loss? Gun is tight, and has the 8" barrel. Bullets were alox lubed cast Lee's.
Anyway, not looking for a magnum round, so the lower velocity doesn't really bother me, just the discrepancy from the published loads. This is the same titegroup powder I use with my smokeless 45 colt loads.