9x25 dillon.

[ellis4538]

I believe TGO used it for a while.

Richard

[tombogan03884]

Sounds like it's great for targets but not much else, kind of like the .223 FMJ, punches little holes in soft targets.
But hey, .22's aren't worth much for fighting or hunting anything but fairly small game, but we all shoot a lot of them 

[USSA-1]

Correct.  A 9x25 is a 10mm case necked down to take a 9mm bullet.

If I could find a good surplus magazine for it, it would make one hell of a sub-gun round in an AR platform.

USSA-1

[Trevor]

Correct.  A 9x25 is a 10mm case necked down to take a 9mm bullet.

If I could find a good surplus magazine for it, it would make one hell of a sub-gun round in an AR platform.

USSA-1

USSA-1 is on the mark, as usual.

[Big Frank]

USSA-1 is on the mark, as usual.

A little off the mark IMO. H&K made a 10mm MP5 that would need a new barrel and probably no other modifications. If you want a sub-gun round, why not put it in a SMG instead of a rifle?

[Sponsor]

[USSA-1]

A little off the mark IMO. H&K made a 10mm MP5 that would need a new barrel and probably no other modifications. If you want a sub-gun round, why not put it in a SMG instead of a rifle?

HK stopped producing the 10mm variant several years ago.  There are an extremely few in private hands and good luck trying to find magazines for them.  AFAIK, none were produced with 16" NFA legal barrels which means you'll have to go the SBR route, which is an added hassle.  Depending on your State, that may not even be an option.

While all of this is technically possible, it would seem to be easier to use a pistol caliber AR upper with a mag block instead to going the HK route.  Don't get me wrong, I love the HK 10mm.  It was easily the best sub-gun ever produced.  Plently of power, range, and capacity.  It was a great subgun.  I would wish I could acquire one.

USSA-1

[Rastus]

HK stopped producing the 10mm variant several years ago.  There are an extremely few in private hands and good luck trying to find magazines for them.  AFAIK, none were produced with 16" NFA legal barrels which means you'll have to go the SBR route, which is an added hassle.  Depending on your State, that may not even be an option.

While all of this is technically possible, it would seem to be easier to use a pistol caliber AR upper with a mag block instead to going the HK route.  Don't get me wrong, I love the HK 10mm.  It was easily the best sub-gun ever produced.  Plently of power, range, and capacity.  It was a great subgun.  I would wish I could acquire one.

USSA-1

How much difference in the MP-5 9mm and 10mm?  Could you "role your own"?  Curt Higgins at S&H Arms (just a few miles from USSA) might be able to build one from the 9MM...he specializes in H&K mods and Class III.

[Big Frank]

Well, if it's not a SMG, I prefer a carbine designed for pistol size cartridges to use pistol length cartridges. I like rifle length cartridges in AR-15s. The way I figure it, if it's a rifle it should use rifle ammo, not pistol ammo, unless it's something like a Winchester '92. JMHO. I like rounds that fill the length of box magazines and mags that fill the mag well. Maximum efficiency.

Mech-tech CCUs are already made in 10mm so all you would need is a new barrel and you slap on your 1911 or Glock frame.

You could also ask Tim LeGendre to make one of his Mag-1 carbines in 9x25 Dillon instead of .45 Win Mag, etc. It would be close to the same power but have more penetration due to the skinny bullet.

[TAB]

now that would be intresting... having a M1 in 9x25 dillon, but that would cost $$$$... a mp5 in it would be easy... but its going to cost alot more.

[Big Frank]

The CCU with 16+ rounds on tap would be way cool too. 170mm mags hold 22 rounds.