Unless you discover you have more than two or three targets. Or that you’re not Carlos Hathcock or Doc Holliday and that you actually *do* miss under stress. Or that you need more than six rounds because your target is armored.
In my experience, trouble does not come in convenient two packs. It often comes in the superjumbo economy size, at which point magazine capacity might keep you alive.
I refuse to carry any service weapon that has less than ten rounds.
You can still special order a “Six Pack” from Milt Sparks. 9 + 60 for the 1911. That should be enough to fight your way back to your rifle.
My idea of concealed carry; If I can’t stop ‘em with the M1911 slung under the left arm, there is always the Taurus 357 mag inside the right front waistband. Just in case I lose those two, there is that Texas derringer in 45LC or .410 in the left ankle holster. I’ll reserve the North American arms Mini in 22LR in the left front pocket as a last resort.