Oldshooter: Hot Loads! Back then my wife loaded for her Marlin Carbine in .44 Mag. The Carbine will take higher pressures than a pistol. She had an old Lyman Manual that gave loads for the Marlin carbine. There was a warning, not to use these in pistols. She loaded up some and carried them when out in the woods here in Alaska. She kept them in a Ziplock Bag and labeled, For Carbine Use Only". Well over the years the writing wore off. We had just moved from DC back to Alaska, and I wanted to go to the range. I found those shells in a box and grabbed them, along with my Super Blackhawk .44 mag. One shot was all it took, got my attention when it felt like it drove my wrist back to my elbow. Split the top out of the cylinder, bent the top strap over the cylinder up, threw pieces of metal out both sides.
My gunsmith friend Doug told me if I had been shooting anything other than a Ruger, I would have lost my hand, and possibly my life. Doug sent the gun to Ruger, they repaired it. Doug sold it for me. I never wanted it back. Had always thought the barrel was too long anyway.