Got my first .22 magnum when I was 16, an Anschutz 141M which is the last gun I'd ever get rid of. With a cheap 4X Weaver B4 rimfire scope it far out-killed the .22lr I'd been using up to that time. Stuff the size of porcupines and coons were decisively dead with one shot. Woodchucks died from body hits out to 150 yards, the two longest measured shots I made on them being 152 and 157 yards. IME the .22 magnum is a much more decisive killer of small/medium sized stuff than the .22 LR without getting into the hassle of reloading.
