's ever PROVEN that they could do while being shot-at. Ditto at 50m, braced- position ambush type of shooting. I'll cheefully give up tight groups to be truly-swift at the ranges that matter. (ie, 10ft and less). With the hand ON a mean-assed pocket pistol, and wearing body armor it's extremely unlikely that more will be needed, and if it is, a bigger pistol is unlikely to make any diff. Ditto Robbie Leatham levels of ability with it. It's EASY to beat Robbies level of pistol stuff, beyond 10m, with a good, canned CAR. As in react, raise the gun, hit 2 torsos at 25m in 1.1 seconds. With no ear-protection, and while being shot-at, even Robbie is likely to miss with at least one of those 2 shots, or have to take a hair longer to do it. The shorty AR is so easy to always have at-hand that there's basically no real reason to not have it. There's a LOT more reason to work at really high speed close stuff, hand to hand, and high speed rifle stuff than waste alot of time on beyond 10m pistol stuff, or even much of it beyond 5m.