Ya know, a guy blows up a few rickety old Colt SAAs a hundred years ago, and he never gets to live it down!

The most commonly perpetuated story is when he loaded a 45 Colt SAA with a 300 gr (45-90?) rifle bullet and all the black powder he could get in a balloon head case. It worked for a while, but finally one let go. Elmer quit trying to make the 45 Colt a top performer since the guns then available couldn't reliably handle the stress, and moved on the the 44 Spl, which has thicker cylinder walls. Not long after that, Hercules 2400 entered the market, and the legend was born.