I propose a 7.95 X 19 cartridge.

Don't be so quick to dismiss this idea; I'm not "reinventing the wheel", either.

Advantages:

a) .312" bullet dia.. This is common and available in various and sundry bullet weights.

b) Capable of very high velocities (1400-1700 fps).

c) The platform is prolific. The 9mm is omnipresent!

d) Large capacity.

e) Low recoil.

f) Excellent penetration capabilities.

g) At these barrel lengths, hollowpoints (up to 135 grains) will likely expand.

h) A standard bullet weight of 98 grains would provide a marvelous "compromise" between penetration and expansion.

i) A barrel exchange with a stock 9mm Parabellum pistol would immediately convert it to the new cartridge; no other alterations are necessary.

j) Brass can be formed from the 9mm Parabellum.

k) The .32 NAA is good in shorter-barreled pistols. This cartridge will be better served in as "service-sized" handgun.

l) Georg Luger laid the "groundwork" in 1905 (110 years ago) by creatin the .30 Luger. While the .30 operated at much lower pressures, the .30 Tokarev (7.62 X 25) paved the way for this concept as well.

This notion came from the idea of the .32 NAA and using the 9mm as a "parent cartridge" as opposed to the .380. THIS IS NOT CONCEIVED TO BE USED AS A "POCKET PISTOL" CARTRIDGE! So many shooters will seek to "test their manhood" (read: recoil tolerance) by putting this cartridge into a pocket-sized pistol, then compain because it; didn't yield the desired velocities; was too loud and was too abusive to shoot. Tough.

"Stupid is as stupid does".

I'm seeking superior penetration, mushrooming, (on upset of hollowpoint bullets) and accuracy. (.32 caliber bullets in both revolvers and autoloaders are well-known for their pinpoint accuracy).

This is just a notion that's been bouncing around inside my head for quite some time.

I was going to point out that cartridge already exists. May be hard to come up with something truly new at this point.

Why? Yes, you could get real high velocity with a small bullet. In FMJ configuration such a round would play well with a vest, but other than that what good would it be?

Would this expand? Probably. So does the 9mm in contemporary loads. I don't see where there would be any demand for this. Besides, if there were demand for a small, fast handgun cartridge, the 5.7mm FN is already available.

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Why? Beacuse 5.7mm is much smaller/lighter than 7.65mm, and there are fewer handgun bullets manufactured for it.

The 7.95 mm (.312" dia) has: 60 grains; 71 grains, 86 grains, 98 grains, 100 grains, 110 grains 120 grains and 135 grains. All are immediately available.

It will also work as a "varmint" cartridge... in spades!

How many are available for the 5.7mm?

It could have a case length longer than 19mm, but I get the idea.

For use poor civvies that can't get AP ammo, bigger JHPs are pretty much the best we can do. For military applications, small caliber AP rounds should be the future. Stopping 9mm ball is pretty much the lowest form of military grade armor these post-flak jacket days. While the 7.62 idea has merit I really like the 6.5x25mmCBJ.

the new 6.5x25 CBJ cartridge

I think a compact SMG with a quad-stack 50rnd mag loaded with those tungsten rounds could be awesome out to 200m. Virtually no felt recoil. Full auto or maybe a five round burst mode. Fit a compact suppressor just to contain muzzle flash. Perfect CQB weapon if you don't mind punching through plate steel, walls, and everything else.

First pistol I ever shot was a 7.65

Aren't you describing a 30 Luger?

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My thought's exactly
But then againg, the .30 Luger is 7.65x21 not 7.65x19 as the threadstarter wanted

https://en.wikipedia.org/wiki/7.65%C3%9721mm_Parabellum

No, This is a .32 (.312" dia.) projectile. Instead of being fired from a .380, as is a .32 NAA; it is being fired from a 9mm Parbellum case. This would be necked down to accommodate the smaller bullet, yet still fit in a 9mm Parabellum magazine. This cartridge could/would operate at the upper pressure limits of the 9mm Parabellum with relative impunity, thus attaining higher velocities without battering the slide and/or frame.

The 1mm longer (and thicker) case accompanied by the longer barrel would permit the projectile to attain a higher velocity, without requiring a longer (or larger) pistol. All that is required is a barrel swap, and a different cartridge. With some loads, you could even exceed the velocities of the .327 Federal Magnum. (Think about it)!

Gentlemen: I corrected my earlier posts to reflect the correct bullet diameter, which would be 7.95 (.312" dia.).

Mea culpa.

What does this load do that the 9mm Luger does not already do well? Addressing your points one by one, here goes:

.355 bullets are available in weights ranging from about 90 to 147 grains - perhaps a few even lower or higher weights.

Velocity isn't everything. Penetration is more important according to just about every authoritative source on stopping power.

Magazine capacity would not be increased because the cartridge you propose is a necked down 9mm Luger. By definition, the magazines would hold the same number of rounds.

I agree the 9mm is prolific.

I thought the 9mm had low recoil already.

The 9mm penetrates and expands just fine, according to the FBI ammo test protocols.

In the 9mm, hollowpoints up to 147 grains expand just fine.

Unless you have a core of some "unobtainium" I just don't see how a 98 grain bullet will penetrate any better than a 124 or 147 grain bullet. The 147 grain 9mm already provides a marvelous compromise between penetration and expansion.

While you may have duplicaed the opening post, you may not have carefully read it. This cartridge is dependent primarily upon velocity and the inherent accuracy of the .32 caliber projectiles.
A 98-grain SJHP or JSP will positively expand; a FMJ or hard cast bullet will overpenetrate.

Much ado is made about "overpenetration" along with "the people in the next room" and other such nonsense. One of the "ten rules of gun safety" is:
"Make certain of your target and what is behind it". Right?!
This deals with "the busload of Nuns" behind the bad guy.

Just dub this the .327 Auto Mag. A 9mm-sized pistol with the ability to either expand violently, or defeat barriers by simply swapping magazines, thus changing ammunition.

Give it a catchy name, write some flashy magazine articles about it and it should sell better then Federal's .327 Magnum . This is an autoloading version of what was the obvious outgrowth of the .32 H&R Magnum; another effective sporting cartridge.

Get the idea?

The firearms industry constantly needs something "new" for a "flavor of the month" invention. This idea uses available technology and currently manufactured arms.

It is a "natural" for sporting purposes.

A 30 cal handgun round with velocity of up to 1700fps already exists. You said it yourself. ....7.62x25. Bullet diameter of .310 85gr fmj 1400 - 1700 fps and energy of up to 600 ft-lbs. There have already been conversions for this caliber in 1911 and Glocks......when ammo was cheap and plentiful. Yes it's not exactly identical in dimensions to your 7.95x19 but the idea and results are already there.

Getting the 7.62 X 25 to fit into a 1911 or Glock platform is a nightmare! (It causes the grip of the 1911 to become thin and prone to dent). I have seen this with my own two eyes. I wouldn't trust a conversion of this nature at all.

In the handgun world, "close" doesn't make it. Having the ability to fit into an already available platform can be the difference between acceptance and dismissal. Success or failure. A proven platform, available componenets, an "easy swap" barrel and loading data that wouldn't be a heavy chore can make all the difference in the world.

1911 in 38 super not 45acp

So build one, or have it built, and show it to people. Make a prolific series of Youtube videos exploding melons or what not.

High velocity has been popular for a while now. I expect momentum to return any day now.

Who could I get to fund it? I'm currently on a pension. Know anyone that would volunteer to create a barrel and neck down a 9mm fur such an effort? North American Arms? Lone Wolf Barrels? Sierra Bullets? Federal Cartridge?

If I make some phone calls, perhaps I could get something going between these individuals and Glock.

Who knows?