[circlecity]

"But they should rechamber it in .357 Magnum so ammo is plentiful."

I went to the article and it never said what caliber this is chambered in. (at least not that I saw). Is it 30.06 like the M1 rifle? If so that would be a hefty recoil for a gun that small, making accurate follow up shots slow and difficult.

[Paladin2]

https://en.wikipedia.org/wiki/.30_Carbine

[Billthedrill]

No, it's .30 carbine. Average muzzle velocity 1987 fps, average muzzle energy 964 out of the stock barrel, no doubt less than that out of a cut-down one. Sort of near a mid-range .44 magnum load, ceteris paribus.

[ctdonath2]

M1 Carbine fires the .30 Carbine cartridge, not .30-06 like its larger namesake M1 Garand.

[Gaffer]

If they used an M1 Carbine receiver it was 30 Carbine...

[NFHale]

RE 30-06:
No, it’s most likely in the original .30 Carbine caliber. It’s a weak round. However, that being said, a lot of the GIs loved that carbine because it was light, handy, and easy to carry. The M2 and M3 versions were full auto.

There’s only two other firearms chambered in .30 carbine, last time I checked; a SW revolver, and an old AMT semi-auto. .357 would be much more practical.

Just my 2cents.

[MHGinTN]

.30 cal of the M1 Carbine most likely. Straight cased bullets a bit more guts than the .357 pistol cartridges.