How many loaded magazines, speedloaders and/or moonclips?
ALL OF 'EM . . . of course!
I keep all my handguns loaded too, and my autos also have a round chambered (except my Ruger MkII .22LR). An unloaded can get you shot trying to load it and, if you had time to load it you might have time to avoid the conflict . . . so I keep mine loaded. The rule in our home is, if you see a gun, it is loaded. Just my wife and I live here now. All the kids are grown and gone.
I keep at least four loaded magazines for my primary self defense 1911 in my car's glove compartment and at least as many more in the bedroom, plus several that go along with the weapon for CCW use in a belt holder.
Ditto on my S&W 25-2 "super snubbie" .45ACP moonclipped wheelgun. I keep eight loaded moon clips for it, all attached in an easy to grab holder (see photo). If it is my primary defense gun on a given day, it goes with me in the car along with the eight moon clips.
Frankly, this tackdriver makes the ultimate car gun, for unlike the bottom feeders you don't have to worry about spent hot brass cartridges flying into your face and/or breaking out your windshield from the inside out if you have to use it.
Also, as you can see in the photo, I have a moonclip of FMJ, a couple of moonclips with the hot Aguilla 117 grain screamers (both excellent against doors and glass), plus LOTS of Federal 230 grain Hydrashocks loaded into moonclips. I've won literally scores of handgun matches with this outstanding custom wheelgun.
48 rounds of moonclipped backup to the six in the cylinder, attached onto one holder that let's 'em be picked up as if they were one unit . . . in a gun that I shoot the best. No a bad combination indeed if ever the SHTF!
I also have loaded speedloaders for my .357 and .38 revolvers. The speedloaders also "travel" as one, with the guns they are dedicated to.
Most all of us will never need all this ammo but . . . if you suddenly do, the BG will NOT wait for you to get your "stuff" together.
At the moment, I'm sittin' at the computer with "just" a pristine, 1964 Model 36 S&W nickle snubbie in my left pocket . . . with a single speedloader stoked with .38spl. LSWC-HP +P in my right one.
It shoots really well too:
THAT should do me well if I suddenly needed it . . . as I retreated upstairs to the .45ACP stuff!
Then . . . there's the SHOTGUN . . .
Frankly, a person will probably never need any ammo! Conversely, you can never have ENOUGH ammo . . . if you ever DO need it!
T.