CostaMesa: I have a nice Ruger MkII in .22 with a heavy target barrel that I love to shoot (it’s also nearly the same weapon we used in the Army for sentry “removal”, sans the suppressor).
As far as “suitable application of power”, I shoot a variety of pistols and my shotgun and my Garand on the range for enjoyment and to stay proficient. It doesn’t have dick to do with a “suitable application of power”. For that, I’d call in my AC130K Spectre. You know, the one I’ve got parked behind my garage. For the phallically challenged, it’s the only way to fly!
By the way, what’s a 40mm pattern at fifty feet? I’ve been shooting since I was a kid and have to say, I have no idea what the hell you’re talking about.