It is the only powder I will use in my shorty 6-1/2" 50-70 Contender. A 90+ percent loading density load shoots at about 950 fps. with a 400 gr LBT LFN. This powder burns exceptionally clean and consistant for me even in this short of a barrel, and really fills the case without producing high pressures. I spoke with a ballistician, and he gave me the following formula, ( straight wall cases only). Determine your bullet seating depth, mark a case at the bullet base, them fill the case with to that level with Trailboss. Weigh this charge, and 70% of this weight will be you start load. He only said to never compress this powder, as it drastically alters the burn rate. I have only used this formula on .38 specials, .44 mags with 180 wadcutters, and the 50-70. The 38's and .44's shoot as good as the .50. My .44 T/C is a scoped 10" and will shoot in 1/2" at 50 yds. with Trailboss. I think you will like it for low to midrange loads. Good luck, let us know how it goes.
