14 January 2022

8x21mm

.30 Super Carry is actually a .313" bullet.  7.95mm.

A 100 grain 0.313" bullet at 1,250 feet per second comes out to 2d+2 pi- and 160/1,700 range.

That's less than the bog standard 9x19mm with its 2d+2 pi.

.30 SC vs torso will give an average of 4.  9mm will give a 9.

That's important!

Changing to HP ammo gets a bit better with the .30 SC changing to 2d+2(0.5) pi.  That will give an 8 against someone wearing a t-shirt.

9mm becomes 2d+2(0.5) pi+ and gets 12 on that same shot.

Perhaps its better compared to .380 ACP?

.380 will do 2d pi with an average of 7 against the torso with ball and 2d(0.5) pi+ with an average of 9 against that t-shirt with hollow points.

Uh...

GURPS has been eerily good at predicting how well a gun will hurt someone and this is looking less impressive now.  If only it could ditch the pi-...  But if 7.65x25mm Mauser and 7.62 Tokarev don't make the "high velocity" cut for pi, neither does this!

3 comments:

  1. "But if 7.65x25mm Mauser and 7.62 Tokarev don't make the "high velocity" cut for pi, neither does this!"

    That was my 1st thought exactly when I read of this 'new cartridge'. The research on a hot .30 has already been done and its been found wanting. Because (I think) people associate a man stopping cartridge with bore size. The bigger the better.

    Maybe this new .30 has less report than the older cartridges ? I owned a .30 Carbine Ruger Blackhawk with easy to deal recoil, but report was LOUD. I began to flinch because of anticipation and that caused me to sell off, regretably. Except for that one quirk, the Blackhawk was a flat shooting sumbitch.

    jrg

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  2. 7.62 Tokarev morphs into 30 Super Carry, "there is nothing new under the sun". The 1849 Colt 31 caliber cap and ball revolver was very popular as a carry gun.

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  3. If 7.62 Tokarev doesn't make it, then I can't imagine how a straight walled .30 cartridge could. Most 7.62 Tokarev ammo is 1200fps+ and some of it is loaded up to 1800fps, albeit that may be out of a submachinegun and a lot of that ammo is only recommended for such applications and not in most common handguns like TT33 or CZ52 types.

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