US Troops using AK-47s

The X number refers to case length. There are several 7.62 diameter rounds
out
there varying length. 30 carbine = 7.62 X 33, 30-06 = 7.62 X 63. The Russian
equivilent to the 30-06 X 54R

Thanks to all for the answer. I'm assuming the larger x number, the longer the
case and the longer the case the greater the load of powder?


BUFDRVR

"Stay on the bomb run boys, I'm gonna get those bomb doors open if it harelips
everyone on Bear Creek"

From: (BUFDRVR)
Date: 7/20/2004 7:01 PM Central Daylight Time
Message-id:

The X number refers to case length. There are several 7.62 diameter rounds
out
there varying length. 30 carbine = 7.62 X 33, 30-06 = 7.62 X 63. The
Russian
equivilent to the 30-06 X 54R

Thanks to all for the answer. I'm assuming the larger x number, the longer
the
case and the longer the case the greater the load of powder?


BUFDRVR


Generally, just keep in mind the evolution of propellents so modern cartridges
can accomplish higher pressures in shorter cases. Competition shooters are
doing amazing things with ammunition now.

Dan, U. S. Air Force, retired

"B2431" wrote in message
...
|
| Generally, just keep in mind the evolution of propellents so modern
cartridges
| can accomplish higher pressures in shorter cases. Competition shooters are
| doing amazing things with ammunition now.
|
| Dan, U. S. Air Force, retired


Only up to a degree. Military ammo may have to sit on the shelf for 30
years or more (I remember shooting 50 cal that was 35 yo), be fired with
newer or older batches on the front line and be compatable with the oldest
firearms that it's likely to encounter.


The major changes were (obviously) black powder to nitrocellulose based
propellants, which would be a major advance for gas operated weapons.


Since then, most ammo development, _within a calibre_, has been for shelf
life and stability, less residue and more consistent performance
round-to-round.





Cheers


Dave Kearton

Here is a hadful from my desk drawer

www.regnirps.com/cartridges.jpg

Left to right:
..22 Long Rifle
..22 Magnum
..22 Hornet
..223 (5.56 NATO)
..243 Winchester (necked down .308 and proposed US Mil standard)
7.62mm by 39mm (AK-47, SKS, etc)
7.62mm by 51mm NATO (.308 Winchester)
30-06
..300 Winchester Magnum
..50 BMG

-- Charlie Springer

"Regnirps" wrote in message
...
| Here is a hadful from my desk drawer
|
| www.regnirps.com/cartridges.jpg
|
| Left to right:
| .22 Long Rifle
| .22 Magnum
| .22 Hornet
| .223 (5.56 NATO)
| .243 Winchester (necked down .308 and proposed US Mil standard)
| 7.62mm by 39mm (AK-47, SKS, etc)
| 7.62mm by 51mm NATO (.308 Winchester)
| 30-06
| .300 Winchester Magnum
| .50 BMG
|
| -- Charlie Springer
|
|



Nice collection, you don't have a 'still in the back yard as well ?





Cheers


Dave Kearton

"Dave Kearton" wrote:

Nice collection, you don't have a 'still in the back yard as well ?

No, but I know somebody who does ;-) It actually tastes like bourbon and the
equipment is from NZ!

-- Charlie Springer

"Regnirps" wrote in message
...
| "Dave Kearton" wrote:
|
| Nice collection, you don't have a 'still in the back yard as well ?
|
| No, but I know somebody who does ;-) It actually tastes like bourbon and
the
| equipment is from NZ!
|
| -- Charlie Springer
|



Sweet


Nothin' like sitting on the front porch with a glass or three of rocket fuel
and watching the weekend go by .....





Cheers


Dave Kearton

Just in case you aren't confused yet, here's some more trivia. Cartridges
such as 44/40 and 45/70 come from the old black powder days. The second
part after the slash denotes how much powder was inside the casing and that
gives you the size of the casing. It sometimes helps to know the history of
the round.



Evan Williams



"BUFDRVR" wrote in message
...
The X number refers to case length. There are several 7.62 diameter
rounds
out
there varying length. 30 carbine = 7.62 X 33, 30-06 = 7.62 X 63. The
Russian
equivilent to the 30-06 X 54R

Thanks to all for the answer. I'm assuming the larger x number, the longer
the
case and the longer the case the greater the load of powder?


BUFDRVR

"Stay on the bomb run boys, I'm gonna get those bomb doors open if it
harelips
everyone on Bear Creek"

From: "Evan Williams"
Date: 7/21/2004 2:53 AM Central Daylight Time
Message-id: et


Just in case you aren't confused yet, here's some more trivia. Cartridges
such as 44/40 and 45/70 come from the old black powder days. The second
part after the slash denotes how much powder was inside the casing and that
gives you the size of the casing. It sometimes helps to know the history of
the round.



Evan Williams

If you really want to confuse things bring up calibers of artillery over the
years. The 40 mm bofors and 40 mm DIVAD rounds have the same diameter, but the
lengths vary. The largest round in my collection is 105 mm in both the howitzer
(AC-130) and cannon (tank and artillery) shell lengths.

If memory serves (and it doesn't always) the 50 caliber naval round is 5 inch
diameter.

Dan, U.S. Air Force, retired

I think you are confused by the method of measuring barrel length in
calibers,

Thus a 5 inch, 50 caliber gun has a barrel 5 x 50 = 250 inches long.

I think that the US Navy had a 5in 50 caliber gun in WW1.


If memory serves (and it doesn't always) the 50 caliber naval round is 5
inch
diameter.

Dan, U.S. Air Force, retired