The current makers of the AR7 finally resolved it's marginal magazine feed. This weapon floats, a small + for your use. Accuracy can be affected by different tensions each time you assemble the barrel. For your use it should be adequate. The M6 has recently undergone a cosmetic change incorporating a pistol grip. I feel it is a step backwards. The .22 Hornet is a fine round, but expensive compared to .22lr. To glean the best accuracy ( especially in this piece), requires conversion to the "K" hornet, a simple reaming to convert the chamber walls to a straight improved configuration for increased shell life and moderate velocity increase. Reloading with milder pistol primers will dramatically increase acuracy. If you don't reload get the .22lr. The few factory loadings in Hornet are very marginal with this weapon. You might also consider one of the H&R family of single shot shotguns.