CCI makes decent .45 shotshells that are intended to cycle in semi-autos, and use #9 shot.
#7 1/2 shot sounds kinda big for this application. :roll: If it was available in #12 shot, like the old Remington shotshells, I would definitely buy some. :lol: That #12 shot allows a much higher pellet count, shoots a more consistent pattern, and still has plenty of weight for snakes, etc. It is actually useful at slightly longer ranges than CCI's shotshells, because of the higher pellet count there are smaller gaps in the pattern. :shock: