"I'd be inclined to go with my Savage 24 .22LR/20ga.Mag. "

Amen to that. I've got a circa 1975 Savage .22LR/20 Mag that I ran slugs through for the first time a few months back. 4" group at 50 yards. No tack driver for sure but accurate enough to bag a doe should the need arise. As a meat gun, you just can't beat it for versatility.

I bet it would work on trolls as well.....

Regards, Vince