It might not be for the Geriatric set here. I would probably be pushing it at this point but then as far as I know I was the only one who ever fired the 20mm portable prototype 30 years ago. It seemed like a good idea at the time. It rolled me about 10-15' or so. Felt like being hit by a car. I've fired the equivalent of a 45/100 out of muzzleloading pistols. A range master who thought I was performing had his middle finger wrapped backwards around the trigger guard. I went with the Dan Wesson back in the 80's due to its Mad Science Potential. 330gr at 1,400 fps out of a custom barrel that had them near MOA out to 200 was Mad Science at its best.How long? I don't know. I probably wouldn't. Had to have surgery on my dominant wrist / hand. They took out bone and installed plate with bunch of screws. I'm just now back to point where can shoot .44 mags without too much pain.