Could a modernized .22 Spitfire be an ideal military cartridge?

Could a modernized .22 Spitfire be an ideal military cartridge?
>basically a slightly bigger 5.7
>50 grains at 2700 FPS, if you raised pressure could increase that by 1-200, giving it nearly 5.45 performance from rifle
>can still fit in pistols, only 1mm wider than 5.7
>could be used in cheap blowback guns

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en.wikipedia.org/wiki/FN_P90
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no, no fucking way

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>could be used in cheap blowback guns
>50 grains at 2700 FPS

I find these two statements difficult to reconcile.

Why not go even smaller tho?

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It's got about as much joules as a 10mm auto and i suppose those can be used in a blowback gun.

No, no, no. You're wrong in literally every way.

what do you mean?

The p90 is blowback homie

and has a heavier bolt and a longer length of travel than a pistol could ever hope to have

10mm auto is way wider though.

For a simple blowback rifle, the weight of the bolt depends on chamber pressure, and chamber pressure depends on how small and high velocity the round is.

This looks like it would have nearly 5.56 levels of chamber pressure.

Delayed blowback

Well then how come 9mm subguns tend to have smaller bolts than 45 acp ones even though 9mm is both lighter and has a higher chamber pressure than 45acp? I ain't buying it.

No it isn't you dumbass.

It looks like it would make a pistol grip be fuck huge like the automag and if it was straight blowback with all the power you say it has it would probably be as big or if not bigger than a hi point. It will always be obscure sadly it seems like a good alternative to .30 carbine for the m1.

Why do you think that the magazine would be housed in the pistol grip?

The barrel reciprocates with the bolt, but not locked to it

Jeesus christ you're dumber than i thought. The barrel on a P90 is fixed, and even if it weren't how do you think it would reciprocate with the bolt if it weren't even locked to the bolt?

Because that is how most pistols are? A c96 type gun in this cartridge sounds sexy though.

Friction from the case and the rearward impulse from the muzzle blast. The fn 5.7 pistol and the lwrc 45 work the same way

Dude both of those have the bolt locked to the barrel for the first few mm of travel, what the hell are you on about?

It could use a bolt no heavier than the M3s, just with a higher ROF, but that shouldn't matter with such light recoil. Could add a recoil reducer or something too.
What is that?
It'd need a much heavier bolt than that.
Just shorten it 2mm to match 5.7, still long but workable.
>as big if not bigger than a hi point
Nah, you could probably fit the bolt into something similar to the Uzi in size.

No. They are delayed blowback. Prove me wrong. I'll wait

Well if it is going into a uzi then it doesn't matter if the grip is the size of a 2x4.

en.wikipedia.org/wiki/FN_P90

>the P90 is a selective fire, straight blowback-operated weapon with a cyclic rate of fire of 900

nigga wtf are you on about? FN 5.7 and lwrc 45 are delayed blowback where the bolt is locked to the barrel for the duration of the first few millimeters of travel. P90 is closed bolt blowback.

FN five-sevens grip most certainly isn't the size of a 2x4

>Plz no bulli manlet hands
Just leave the cartridge as is and don't try to fit it into a pistol leave it as a PDW cartridge

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Wikipedia isn't a source.

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You just described a short recoil system

>What is that?
Interdynamics MKS from Sweden, circa 1982. It was a selective-fire carbine that used a 5mm rimfire cartridge that was ballistically roughly between the .22 Magnum and the .17 Rimfire Magnum that appeared a few years ago. The manufacturer claimed 250+ meters lethal range. The market was not impressed and they didn't get the foreign sales they were hoping for.

45 ACP has a bigger case head.

So a completely shit ineffective cartridge? No wonder it didn't take off.