7.62x25, is it .308 or .311

Juker008 · March 30, 2009, 20:35

It is my understanding that when referring to Comblock .30 cal, it is generally known to be .311, but from my findings its seems that 7.62x25 to be .308.

So the question, is 7.62x25 .308 or .311?

MTIA,

Juker008

shortround · March 30, 2009, 20:46

.308

Juker008 · March 30, 2009, 20:53

One more question, why?

Why would they retool their machines to churn out .308 ammo or produce .308 barrels.

Juker008

FAL GRUNT · March 30, 2009, 20:58

Well, the 7.62x25 Tokarov cartridge is based off of the 7.63 Mauser cartridge. So... that may be your answer.

-myers

shortround · March 30, 2009, 21:19

Quote:

Originally posted by FAL GRUNT
Well, the 7.62x25 Tokarov cartridge is based off of the 7.63 Mauser cartridge. So... that may be your answer.

-myers

Yep.

yarro · April 14, 2009, 22:49

You will sometime find WWII PPSh barrels with the larger bore of the 7.62x54R. My guess is that a .308 bullet will go down the bore and you can produce 2 PPSh barrels from one blank versus 1 for a M91/30 and thus 2 guns.

-yarro

bouncer50 · April 15, 2009, 00:06

I have slug out a couple of CZ-52 and they come out 310-311 so a 308 dia is a little undersize. I tried 32-20 bullets that are 311 and shot them in the CZ-52 And they group a lot better then the 308 dia. I have 3 Astra 400 in 9mm largo the factory rounds are 355 dia. I slug out the bore and they were between 358 to 360. I tried 358 dia bullets and the shoot good. The trick is to slug out you bore and then tried to match the bullet to the bore size.

March 30, 2009, 20:35	#1
Juker008 Registered FALaholic #: 29521 Join Date: May 2007 Location: WPB Fla Posts: 66	7.62x25, is it .308 or .311 It is my understanding that when referring to Comblock .30 cal, it is generally known to be .311, but from my findings its seems that 7.62x25 to be .308. So the question, is 7.62x25 .308 or .311? MTIA, Juker008

March 30, 2009, 20:46	#2
shortround Registered Bronze Contributor FALaholic #: 1503 Join Date: Nov 2000 Location: Southeast, MI, USA Posts: 2,799	.308 __________________ Nostalgia: It's just not what it used to be. I used to be indecisive, but now I'm not so sure. To be sure of hitting the target, shoot first and call whatever you hit the target. Someone asked if I was a procrastinator and I told them I wasn't sure but I'd get back with them tomorrow.

March 30, 2009, 20:58	#4
FAL GRUNT Registered FALaholic #: 7561 Join Date: Sep 2002 Location: Medina OH Posts: 3,053	Well, the 7.62x25 Tokarov cartridge is based off of the 7.63 Mauser cartridge. So... that may be your answer. -myers __________________ http://myersarms.wordpress.com/

April 14, 2009, 22:49	#6
yarro Registered FALaholic #: 28278 Join Date: Apr 2007 Location: Austin, TX Posts: 858	You will sometime find WWII PPSh barrels with the larger bore of the 7.62x54R. My guess is that a .308 bullet will go down the bore and you can produce 2 PPSh barrels from one blank versus 1 for a M91/30 and thus 2 guns. -yarro __________________ Most people will give up freedoms for the perception of safety until they are no longer free or safe.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

March 30, 2009, 20:53	#3
Juker008 Registered FALaholic #: 29521 Join Date: May 2007 Location: WPB Fla Posts: 66	One more question, why? Why would they retool their machines to churn out .308 ammo or produce .308 barrels. Juker008

April 15, 2009, 00:06	#7
bouncer50 Registered FALaholic #: 10039 Join Date: Mar 2003 Location: NW Indiana Posts: 1,652	I have slug out a couple of CZ-52 and they come out 310-311 so a 308 dia is a little undersize. I tried 32-20 bullets that are 311 and shot them in the CZ-52 And they group a lot better then the 308 dia. I have 3 Astra 400 in 9mm largo the factory rounds are 355 dia. I slug out the bore and they were between 358 to 360. I tried 358 dia bullets and the shoot good. The trick is to slug out you bore and then tried to match the bullet to the bore size.