The only thing that concerns me about the video is the complete lack of safety exhibited by the guy. Shooting indoors with no back stop except the water heater, no ear or eye protection, and who knows what a ricochet could hit. Other than that I used to think slide fires were dumb and I still do for a 223/5.56 but on a .22 I think they look fun. Not now of course because I don't have enough ammo to dump a 25 round mag and not worry about my range time only lasting 30 minutes. And, the slide fire stock is cost prohibitive right now for me. The rapid fire .22 does sound nice.