Not true. I load 7.1 gr of 231 in the .45 Colt for my 25-5. I visually inspect EACH case in a loading block prior to seating bullets. I once caught a double charge that way. 231 is much bulkier than Bullseye. The double charged case was spotted easily, and was much fuller than the others as 14.2 gr of 231 filled it at least 3/4 of the way up. In this case, 18.2 gr of 231 (a double charge) would have filled the .44 magnum at least 3/4 of the way up. This was pure carelessness, and nothing more. FWIW, I use 9.5 gr of 231 as my everyday workin' load in the .44 magnum. It's good for about 1200 fps in my 6 1/2" 29-2, and is easy on the gun and shooter.