It takes nearly 2 seconds to react, raise pistol and get 8 chest hits, even at 10 ft and less. It takes 1 1/2 second more to get 7 more such hits. If I HAD the extra time, I could have brained the guy with one of the first 8, yes? If a concealed draw is necessary, add another 3/4 sec. These times are for TOP hands. Most people need 2x as long. If we really DID need 308 type momentum or energy for defense, it would be pointless to shoot them with a mere 9mm. In point of fact, tho, the 64 223 sp downs men quite reliably, and is quite demonstrably reliable on feral dogs. Since many dogs need to be shot, pistol performance against theml IS relevant, while same is not true of goats or deer. We CAN achieve 223 type performance in a carryable and controlable belt pistol. The 460 Rowland can drive a 70 gr prefrag to 2400 fps, for the same 900 ft lbs (up close) that a 223 has out at 100 yds or so, (where most coyotes and dogs get shot.) So you are wrong about the pistol being so feeble. If it is loaded right, it can have PLENTY of power. The load I mentioned has LESS recoil than .45 ball. Just multiply the slug wt x the velocity, and throw out the meaningless zeros. A 240 gr slug at 700 fps would recoil the same as a 70 gr slug at 2400 fps. The 2 might be PERCEIVED as having a different "feel", because of the shorter bore-time of the hi-v load, that's all.