Personally, I find little difference between a 9mm and .40cal in the same pistol as far as recoil/muzzle flip is concerned. Both are high-pressure cartridges that will result in very similar recoil/muzzle flip. To suggest that a .40 is "worse" for either than a 9mm is somewhat of an exaggeration. I mean, a .44mag has "worse" recoil and muzzle flip than a 9mm...but a .40? C'mon.....




















































