I have the 45 colt version. I had to ream the cylinder throats and get a taller front sight to get in business. My pop liked mine so much he bought one, but his came with a taller front sight and cylinder throats 451 which was better than mine which came at 449. We reamed them to .4525. Our favorite load is 18.5 2400 and a 325 WFN. THis load does 1200 FPS in our guns. We have each killed a pig and 3 deer. I have some good pictures of the gun on harvested animals but I don't know how to post them.