Favorite alloy-frame 1911 caliber out of these?

[Ron3]

I don't have an opinion on a favorite yet.

I do favor the most reliable one. More rounds in mag is nice, too.

I reload so I'm not concerned about ammo cost. Not that I like chasing casings because I don't.

Not sure if an alloy 1911 in 10 mm is even a thing.

[gaijin]

I still have a DW Commander (size) pistol in 9mm; 10+1.
Good, but minimalist gun.

The use of Ramped Barrels was a HUGE improvement in alloy frame 1911s.
I had on old alloy frame Colt Commander in .45 ACP with a standard, non-ramped barrel. Just a few hundred rds of JHP chewed up the frame badly enough it wouldn’t reliably feed.
I installed a Steel ramp insert in frame and that solved problem, but was a PITA.
The point? Whatever you consider getting, caliber wise, make sure it has a ramped barrel.

Add; of your listed caliber options, 9mm is far and away the cheapest to load/shoot.

[Ron3]

I still have a DW Commander (size) pistol in 9mm; 10+1.
Good, but minimalist gun.

The use of Ramped Barrels was a HUGE improvement in alloy frame 1911s.
I had on old alloy frame Colt Commander in .45 ACP with a standard, non-ramped barrel. Just a few hundred rds of JHP chewed up the frame badly enough it wouldn’t reliably feed.
I installed a Steel ramp insert in frame and that solved problem, but was a PITA.
The point? Whatever you consider getting, caliber wise, make sure it has a ramped barrel.

Add; of your listed caliber options, 9mm is far and away the cheapest to load/shoot.

Thanks for the ramp tip!

I'd heard about it but wasn't sure how necessary it was.

[gaijin]

If all you shoot is Ball/FMJ not much of a problem. JHP thrown in, it IS a problem.

[Ron3]

If all you shoot is Ball/FMJ not much of a problem. JHP thrown in, it IS a problem.

It would be both.

[1986s4]

I voted .38 Super Auto. Because.... That's what I have. But I have a drop in 9mm barrel and a .22 top end for it. The 9mm works great.