More than cartridge size, I want:
1. Commercial SD ammo that's made by a reputable manufacturer. This means high quality ammo that go bang; and if used in SD situation, there's minimal questions my ammo choice.
2. That the ammo functions 100% in my carry gun (in different orientations). This means regularly testing the ammo in the gun.
But, I've found that, instead of picking my carry gun based on cartridge, I pick the gun first (as long as the cartridge has enough stopping power, and this means >= 9mm). After all, the gun's going to the carried, and I want comfort and have good holster support so that I don't leave it home. This means I don't ever carry a traditional 1911 (fullsized or compact) because it is too heavy and not ergo (now, I know many people do carry this gun and they've got good stopping power; this is just what I'd never carry).
1. Commercial SD ammo that's made by a reputable manufacturer. This means high quality ammo that go bang; and if used in SD situation, there's minimal questions my ammo choice.
2. That the ammo functions 100% in my carry gun (in different orientations). This means regularly testing the ammo in the gun.
But, I've found that, instead of picking my carry gun based on cartridge, I pick the gun first (as long as the cartridge has enough stopping power, and this means >= 9mm). After all, the gun's going to the carried, and I want comfort and have good holster support so that I don't leave it home. This means I don't ever carry a traditional 1911 (fullsized or compact) because it is too heavy and not ergo (now, I know many people do carry this gun and they've got good stopping power; this is just what I'd never carry).