I am shopping for a hand gun. With the ammo shortage as it is maybe the thing to do is reverse engineer the gun starting with ammo and ammo availability. There are lots of videos and ads out there for cool looking plastic handguns using 22 magnum. What is the deal on 22 magnum for self defense purposes? Does it have enough stopping power. As a complete novice to hand guns I was told I need at least 38 caliber in a self-defense weapon but these 22 magnum rounds at least LOOK impressive. What is the real deal?