I was finally able to load some Trailboss loads and have some fun. After all I do have a 2 year old and 4 year old that keep me busy. I loaded 5.8 grains of Trailboss with a 250 grain LRNFP. Let me tell you, I had fun! I have been loading my Blackhawk up with +P loads for so long that I forgot how nice a pleasant shooting load can be. I ran a few over the chrono and was getting 684 fps (avg) with a standard deviation of 8.3 fps out of the 5 1/2" barrel. I ran a few Black Hills cowboy loads through and they averaged 772 fps with a standard deviation of 11.7 fps. The Open Top functioned perfectly and it was easy to keep the groups to 3"-4" off hand at 15 yrds with no real effort. Lots of fun! If you only supercharge the .45 colt you are missing a good time....glad I came back with the Open Top!