I've had phenomenal accuracy with "Trail Boss" powder. I use this load in both a S&W 44 Mag Classic revolver with a 5" barrel and a Marlin 44 Mag Carbine. It groups around 2-3 inches at 50 yds. in the S&W & 2 inches at 100 yds. in the Marlin. In the Marlin, I use the RNFP (Round Nose Flat Point) because it feeds smoothly into the chamber. SWC's are great in a revolver, but they'll sometimes hang up in a lever rifle. One other caution: If you're shooting lighter loads in a rifle, I wouldn't go below 950 fps. Remember, the bullet has to clear a longer 16 - 20" barrel. And I wouldn't load any jacketed bullet below 1,100 fps. Trail Boss powder has an added safety advantage. It fills up most of the case, so a double charge is very unlikely; it would overflow. Some of the faster powders that are suitable for light loads have to have such light charges, the powder is hard to see in the case & double & triple charges would fit & a missing charge would be hard to spot.