US military M, XM, T codes


Does any one have list of these, similar to the list in the back of COTW.




There are a couple of versions available but no recent ones as far as I know. It’s something that several of us have been looking for. Until someone posts an updated version on the web it would take a lot of research to dig a copy out the public records.

I can probably e-mail you the ones that I have. One is very lengthy. I’m not sure that I can attach them to a PM so why don’t you PM me with your e-mail address and we’ll see what we can do. No promises since I’m not very computer savvy.



Ray–falcon5nz does not need to PM you for you to get his Email. Just click on the “EMAIL” button at the bottom of his post.


I don’t see any EMAIL button…


MTLB–It is at the very bottom of each persons post next to where it shows the date of posting. It has buttons for “PROFILE, PM & EMAIL”.



Your eyes are better than mine because I don’t see an e-mail button. Only a Profile and PM. As hall monitor you must a different list to choose from.



Ray & MTLB–Since two people have reported this problem I will forward it to ChrisB. He knows the inner workings of the Forum Software better than I do. Hopefully he can solve the problem.


Some people’s email button shows, and some do not. The person usually chooses whether they want it visible, I don’t know if his should show or not. That being said, here is a list only for the “AP” U.S. military cartridges which have some of the above prefix designations:

5.56x45mm (.223 / .224 special)
M855 Cartridge, 5.56mm, Ball Penetrator (SS-109)
M995 Cartridge, 5.56mm, Armor Piercing (AP)

.30 Carbine
T62 Cartridge, Armor-Piercing, Carbine, Caliber .30

7.62 NATO (.308)
M601E1 Cartridge, 7.62mm, NATO, Armor-Piercing, Incendiary Tracer
M61 Cartridge, 7.62mm, NATO, Armor-Piercing (T93E2)
M948 Cartridge, 7.62mm NATO, Saboted Light Armor Penetrator (SLAP)
M949 Cartridge, 7.62mm NATO, Saboted Light Armor Penetrator Tracer (SLAP-T)
M993 Cartridge, 7.62mm NATO, Armor Piercing (AP)
T101E1 Cartridge, 7.62mm NATO, Armor Piercing Incendiary (API)
T93E2 Cartridge, 7.62mm NATO, Armor Piercing (AP)
T15 Cartridge, Armor-Piercing-Incendiary, Caliber .30 (M14)
M14A1 Cartridge, Armor-Piercing-Incendiary, Caliber .30 (T15 with T1 E48 Bullet)
M14 Cartridge, Armor-Piercing-Incendiary, Caliber .30 (T15)

.30 Caliber (30-06)
M2 Cartridge, Armor Piercing, Caliber .30
T101 Cartridge, Armor-Piercing-Incendiary, Caliber .30 (Light Rifle)
T101E2 Cartridge, Armor-Piercing-Incendiary, Caliber .30
T119 Cartridge, Armor-Piercing-Incendiary, Caliber .30 (Tungsten Carbide Core)
T119E1 Cartridge, Armor-Piercing-Incendiary, Caliber .30
T15E1 Cartridge, Armor-Piercing-Incendiary, Caliber .30
T5 Cartridge, Armor-Piercing, Anti-Tank, Caliber .30
T93 Cartridge, Armor-Piercing, Caliber .30
T93E1 Cartridge, Armor-Piercing, Caliber .30
T93E2 Cartridge, Armor-Piercing, Caliber .30

M2 Cartridge, Armor-Piercing, Caliber .50
M8 Cartridge, Armor-Piercing-Incendiary, Caliber .50 (T16)
M20 Cartridge, Armor-Piercing-Incendiary-Tracer, Caliber .50 (T2B)
M8E1 Cartridge, Armor-Piercing-Incendiary, Caliber .50, (double base powder)
M903 Saboted Light Armor Penetrator, (SLAP)
M962 Saboted Light Armor Penetrator-Tracer, (SLAP-T)
Mk 211 Mod 0 “Raufoss” Armor-Piercing-Incendiary-Explosive
Mk 300 Mod 0 “Raufoss” Armor-Piercing-Incendiary-Explosive-Tracer
T16 Cartridge, Armor-Piercing-Incendiary, Caliber .50 (M8)
T28E1 Cartridge, Armor-Piercing-Incendiary-Tracer, Caliber .50 (Dim Igniter)
T38 Cartridge, Armor-Piercing-Tracer, Caliber .50
T28 Cartridge, Armor-Piercing-Incendiary-Tracer, Caliber .50 (M20)
T49 Cartridge, Armor-Piercing-Incendiary, Caliber .50
T63 Cartridge, Armor-Piercing-Incendiary-Tracer, Caliber .50

.60 Caliber / 15.2x114mm (Aircraft cannon / Anti-aircraft gun)
T202 Cartridge, Armor-Piercing-Incendiary, Caliber .60
T38E1 Cartridge, Armor-Piercing-Incendiary, W Caliber .60
T39 Cartridge, Armor-Piercing-Incendiary, Caliber .60
T39E1 Cartridge, Armor-Piercing-Incendiary, Caliber .60 (T39 with M36A1 Primer)
T39E2 Cartridge, Armor-Piercing-Incendiary, Caliber .60
T39E3 Cartridge, Armor-Piercing-Incendiary, Caliber .60
T39E4 Cartridge, Armor-Piercing-Incendiary, Caliber .60
T39E5 Cartridge, Armor-Piercing-Incendiary, Caliber .60
T39E6 Cartridge, Armor-Piercing-Incendiary, Caliber .60
T45 Cartridge, Armor-Piercing, Caliber .60
T45E1 Cartridge, Armor-Piercing, Caliber .60
T46 Cartridge, Armor-Piercing-Tracer, Caliber .60
T46E1 Cartridge, Armor-Piercing-Tracer, Caliber .60
T60 Cartridge, Armor-Piercing-Incendiary-Tracer, Caliber .60
T60E1 Cartridge, Armor-Piercing-Incendiary-Tracer, Caliber .60
T51 Cartridge, Armor-Piercing-Incendiary, Caliber 60-.50
T75 Cartridge, Armor-Piercing-Incendiary, Caliber .60-.50
T76 Cartridge, Armor-Piercing-Incendiary-Tracer, Caliber .60 with Bright Igniter
T76E1 Cartridge, Armor-Piercing-Incendiary-Tracer, Caliber .60
T82 Cartridge, Armor-Piercing-Incendiary, Caliber .60 (electric primer)
T82E1 Cartridge, Armor-Piercing-incendiary, Caliber .60
T83 Cartridge, Armor-Piercing-Incendiary-Tracer, Caliber .60
T83E1 Cartridge, Armor-Piercing-Incendiary-Tracer, Caliber .60
T84 Cartridge, Armor-Piercing-Incendiary-Tracer, Caliber .60
T84E1 Cartridge, Armor-Piercing-Incendiary-Tracer, Caliber .60
T97 Cartridge, Armor-Piercing-Incendiary, Caliber .60 (5.25 radius ogive)

M52 Cartridge, Armor-Piercing, Incendiary Tracer, 20mm (T230)
M53 Cartridge, Armor-Piercing-incendiary, 20mm (T221 E3)
M95 Cartridge, Armor-Piercing-Tracer, 20mm
MK107 Mod 0 Cartridge, 20mm, Armor-Piercing-incendiary
MK108 Mod 0 Cartridge, 20mm, Armor-Piercing-Tracer
T133 Cartridge, Armor-Piercing-incendiary, 20mm (T118 Gun)
T150 Cartridge, High Armor-Piercing-incendiary, 20mm
T150E1 Cartridge, Armor-Piercing-Incendiary, 20mm
T151 Cartridge, Armor-Piercing-Incendiary, 20mm (Electric Primer)
T164 Cartridge, Armor-Piercing-Incendiary, 20mm
T221 Cartridge. Armor-Piercing-Incendiary, 20mm (with anvil)
T221E1 Cartridge, Armor-Piercing-Incendiary, 20mm (without anvil)
T221E2 Cartridge, Armor-Piercing-Incendiary, 20mm
T221E3 Cartridge, Armor-Piercing-Incendiary, 20mm (M53)
T230 Cartridge, Armor-Piercing-Incendiary-Tracer, 20mm (M52)
T232 Cartridge, Armor-Piercing-Incendiary-Tracer, 20mm
T283 Cartridge, 20mm, Armor-Piercing-Incendiary-Tracer
XM207 Cartridge, 20mm, Armor-Piercing

M791 Cartridge, 25mm, Armor Piercing Discarding Sabot-Tracer
M919 Cartridge, 25mm, Armor Piercing Fin Stabilized Discarding Sabot-Tracer

M789 Cartridge, 30mm, High Explosive Dual Purpose

Odd calibers
T1 Cartridge, Armor-Piercing, Caliber .276 (7mm)



I think you are right. The e-mail link only shows on the forum if the member chooses to have it shown. However, if anyone can go to members profile and get an e-mail link there, it seems that there’s not much security in having it not show on the Forum. But, I’m not sure that’s an option either. I know that I had to block all PMs and e-mails on some other forums that I visited because I found they were infecting my PC with spam, spyware, and maybe even viruses.

BTW, where did the “5.56x45mm (.223 / [color=#FF0000].224 special[/color])” designation come from? I’ve never seen a 224 Special. Is that just your own?

And I believe some of your 7.62MM and Cal 30 designations are mixed up.



Ray - the term for the 5.56 with the quotes of (223 / 224 special) is just to cover the ambiguity of the caliber in general, where 223 and 5.56 are essentially synonymous (yes I know the difference), and I think the term of “224 special” is just what the original writer of that list deemed what the “223 Remington” should actually be called, as it might be the more technically correct description. The list of .308’s is all correct for the obvious ones, except I think some of the T-series which relate to the eventual M-series are guesses by whomever wrote that.


It appears that he has mixed the various experimental and prototype 22 cartridges into one. What we now know as the 5.56x45 was, at one time, the 222, 222 Special, and 223. There was also the 224 Winchester and the 224 Springfield - different than the 5.56x45 and from one another. But, it’s his list and he can call the cartridge whatever he wants, I suppose.

On the other hand - there’s no polite way to say this - calling the T101 or the T93 a Cal .30 cartridge is just plain incorrect. There are others.