The only factory loads I shot it mine are 230 gr FMJ Winchester. I had zero problems with them and i put 100 rounds through my pistol in an hour of shooting. I have tried three hand loads. The first was with a lee tumble lube 200 gr SWC with 4.8 gr of WST. My pistol did not like this load as I had repeated failures to feed though the same load works fine in three other pistols I own. The failures all occurred in the first half of the magazine once I got down to five remaining rounds it never jammed. The second load were the same powder charge with a Rainier plated 200 gr HP bullet. These worked fine and I put a couple hundred through the pistol in a days shooting. The last load is the same powder charge with a 200 gr Lee cast round flat nosed bullet designed for the 45 colt. Again same powder charge but this bullet works very well in my pistol. I have put nearly 500 through it without a single malfunction.