I have tried the power belts. I had a .45 cal that I just sent back to t/c because it wouldn't shoot a group with any kind of bullet, espiesally the t/c's I couldn't hardly get them down the barrel either I thought that I would break the ram rod trying to push them down the barrel. The power belts are real easy to load, if you find the right one that will shoot a good group. Hope this helps, good luck.