Author Topic: Anybody have the 7.62x39 Yet? How are they? (Read 2341 times)

Robert · « **on:** June 05, 2005, 08:21:32 AM »

I sure would like to hear back from anyone that has already gotten thiers back. NEF did not provide many details about these barrels, and I have to wait till this coming week to send in for mine. I would love an update from anyone who has gotten one.

quickdtoo · « **Reply #1 on:** June 05, 2005, 08:32:21 AM »

I sent another email asking them what the twist rate is and when they would be available, should hear back tomorrow....

Leftoverdj · « **Reply #2 on:** June 05, 2005, 09:47:30 AM »

Robert, this is going to take some sorting out even after we get barrels. Some of the Russian ammo is incredibly bad.

Stan in SC · « **Reply #3 on:** June 05, 2005, 12:48:00 PM »

I have NEVER run across any bad 7.62x39 whether it be Wolf,Izmash or Winchester.Please explain what you mean by bad?Have I been overlooking something?

Leftoverdj · « **Reply #4 on:** June 05, 2005, 01:34:15 PM »

Stan, what I mean is that I got 5-6 MOA with Barnaul HP and FMJ in a rifle that does about 2 MOA with cast and less than 1 MOA with handloads using the Sierra 125 .311 Pro Hunters. Results were just as bad with some nameless Russian surplus.

quickdtoo · « **Reply #5 on:** June 06, 2005, 05:08:47 AM »

Got this reply from them....

Quote

the bore is .300 and the grove is .310 the twist is 9.45 we have them in stock.

Tim

Robert · « **Reply #6 on:** June 06, 2005, 05:25:06 AM »

Wow...a 9.45 twist....that is pretty cool. These guns should stabilize some big heavy bullets....exactly what I was hoping....now we just have to see what the throat is. If it is too much....will possibly not be so accurate with factory ammo or reloading 123 gr bullets..unless seated long, but would be great for big cast bullets or with big Sierra Matchkings. On the other hand....if the throat is short....it is pretty easy to get it reamed out and accurized a little bit. I can't wait.

Varminter · « **Reply #7 on:** June 06, 2005, 06:08:14 AM »

Did they say what the cost of this barrel would be?

Robert · « **Reply #8 on:** June 06, 2005, 06:26:50 AM »

82.00 for the barrel 15.00 fitting fee and a 10.00 S&H

$107.00 to your door.

Varminter · « **Reply #9 on:** June 06, 2005, 06:48:20 AM »

Sounds like i may be getting one of these barrels. Just for the range.

Longcruise · « **Reply #10 on:** June 06, 2005, 09:23:29 AM »

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a 9.45 twist

That is downright strange. :shock:

This is a cartridge that would do just fine with a 1/12 twist! Not that the 9.45 won't work and indeed it might be fantastic. The 9.45 just does not seem to have any precedent or purpose.

Lessee, what other .311 cartridge out there has a 9.45 twist? This is coming across like a matter of conveniance in terms of rifling buttons already on the shelf! What is 9.45 per foot when translated into turns per meter?

Longcruise · « **Reply #11 on:** June 06, 2005, 09:26:11 AM »

I meant 1/9.45 when translated into turns per meter! Sorry :oops: :?

Leftoverdj · « **Reply #12 on:** June 06, 2005, 10:35:19 AM »

Chuck Hawks says that 1-7.5 is normal for 7.62x39. He also shows 1-10 for the .303 Brit.

http://www.chuckhawks.com/rifle_twist_list.htm

tom barthel · « **Reply #13 on:** June 06, 2005, 12:15:53 PM »

Next question in 7.62x54 or .303 British.
Tom

Longcruise · « **Reply #14 on:** June 06, 2005, 03:05:05 PM »

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Chuck Hawks says that 1-7.5 is normal for 7.62x39

Gonna measure the twist on my Yugo SKS. 7.62X39 is essentially a .30 caliber bullet which is stabilized even up to 220 grains by a 1-10 twist.

I'll let ya know what mine measures

Robert · « **Reply #15 on:** June 06, 2005, 03:16:18 PM »

OK Tom..Don't go messing with my mind. I just sent my receiver in today, and you are gonna make me wish I ordered two of them.

ScatterGunner · « **Reply #16 on:** June 06, 2005, 04:12:27 PM »

are they selling rifles in 7.62x39 or just barrels ?

this is a slick round, i believe it is based on the 220 russian which is the root of the 22 and 6mm ppc. it may also be the cause for all the wsm and wssm rounds too. does it have a small or large rifle primer ? a small one would be preferrable.

with a 310 groove, it should be easy enough for cast bullets too. although, a regular 308 groove would give us more of a bullet selection.

sg

quickdtoo · « **Reply #17 on:** June 06, 2005, 04:53:29 PM »

Just barrels, order number is R03490.

Tim

Robert · « **Reply #18 on:** June 07, 2005, 05:30:06 AM »

Scattergunner, the 7.62x39 can be had with either small or large primers. (CORRECTION, Usually it is LARGE PRIMERS....Remington uses Small Primers. ) *********************edited. I have both.

Badnews Bob · « **Reply #19 on:** June 07, 2005, 10:52:28 AM »

Ya got that backwards scatter gunner. 7.62x39 is the parent cartridge for those mentioned, It was developed in the 40s a response to the shortened 8MM the Germans used in the Strumguvier, (spelling?) The worlds first assult rifle.

Haywire Haywood · « **Reply #20 on:** June 07, 2005, 02:55:40 PM »

Bob's been reading again. See Bob? I told you those squigley lines we call letters would come in handy someday. :mrgreen:

Ian

Robert · « **Reply #21 on:** June 08, 2005, 06:07:02 AM »

1 in 10 twist is not uncommon in 30ish calibers, so 9.45 is not that strange...for example here are some of the test barrels listed for other cartidges in the Speer manual...
308 Win 1-10
30-40 1-10
30-06 1-10
300H&H 1-10
308 Norma 1-12
300 Win 1-10
300 Weatherby 1-10
7.62x39 1-10
303 Brit 1-8
8mm mauser 1-9.5
8-06 1-10
8mm Rem 1-10
Hmmmmm...now I am getting very interested in the 303. I never really noticed that the rifling is so fast in it. Might make a nice project gun for heavy bullets.

Longcruise · « **Reply #22 on:** June 08, 2005, 07:08:30 AM »

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1 in 10 twist is not uncommon in 30ish calibers, so 9.45 is not that strange

Certainly not "strange" in the sense of usefulness. 9.45 should make a perfectly "handy" twist rate for the 7.62X39. The one mentioned on ChuckHawks of 1:7.5 is pretty odd though. Still have yet to measure an SKS to see what the Yugoslavians thought was the correct twist :grin:

Quote

303 Brit 1-8

Thats as odd as the 7.5 for the 7.62X39 :shock:

1:10 to 1:12 is an adequate and useful twist in any of the 30 to 8mm cartridges, IMO. The 1:8 is especially strange when you consider that the brit issue cartridge was with a 174 gr bullet. I have a .303 in the rack and will measure that one too! Wonder what the Mosin's are specced at. Mine shoots a 225 grain bullet with good accuracy.

All in all, there had to be a reason why NEF chose 9.45. Knowing NEF, it didn't have to be a good or logical reason :grin: Whatever the reason it would be interesting to know the who and why of it.

Maybe DIANAL get sneak into the boardroom and get an answer to that one! :-)

Leftoverdj · « **Reply #23 on:** June 08, 2005, 08:36:15 AM »

Quote from: Longcruise

All in all, there had to be a reason why NEF chose 9.45. Knowing NEF, it didn't have to be a good or logical reason :grin: Whatever the reason it would be interesting to know the who and why of it.

Logical reason is that NEF wanted to to a small test run to see what the market is. Not worth tooling up for, so they bought blanks from someone who already makes such blanks, and took what they could get. That someone was a European rifling at 4 turns to the meter. Iffen NEF ever gets around to making their own barrels, they can use 1-10 and no one will ever see the difference in shooting one.

A likely reason for the very fast twists in some of the military stuff is that not all bullets have lead cores. The Soviet bloc weapons for the 7.62x39 had to handle the longer steel cored projectiles. Lower velocity also calls for a faster twist.

Longcruise · « **Reply #24 on:** June 08, 2005, 08:47:29 AM »

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That someone was a European rifling at 4 turns to the meter

That seems to be the most likely scenario, DJ

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A likely reason for the very fast twists in some of the military stuff is that not all bullets have lead cores. The Soviet bloc weapons for the 7.62x39 had to handle the longer steel cored projectiles. Lower velocity also calls for a faster twist

I think the Russkies could have made their 122 grain bullets from aluminum and they would not have been too long for a 1:10 twist :lol:

Lower velocities? Hmmm..., a case could be made for the opposite as well. Not that I wish to be contentious, I just can't help it :shock: 1:10 does a fine job in a 30-30 with up to 200 grain and larger bullets. The 7.62X39 should not have any special requirements not met by the 1:10 in the 30-30.

mt3030 · « **Reply #25 on:** June 08, 2005, 09:13:43 AM »

If these barels do come from a Euopean source, they should have "standard" rifling, and not the micro-groove. Looking forward to a report.

Wally

Longcruise · « **Reply #26 on:** June 08, 2005, 09:23:28 AM »

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If these barels do come from a Euopean source, they should have "standard" rifling, and not the micro-groove. Looking forward to a report.

mt3030, interesting observation.

BTW, my nef handi 30-30 does have standard rifling and a standard throat! It was built in 1995 and sat in a dealer storage room till I bought it about 18 months ago.

For inquiring minds, I measured the twist rate on a Yugo sks and a brit no 1 mk III enfield. Results: Yugo 1:10.5 and Enfield 1:10.

Longcruise · « **Reply #27 on:** June 08, 2005, 09:27:22 AM »

Another thought, if these are standard barrels (rifling) then they would also be great candidates for other conversions to cast bullet guns in 300 savage or?

Fill in your idea here____________________

mt3030 · « **Reply #28 on:** June 08, 2005, 09:41:35 AM »

All my Enfields, Mark 3s,4s, and 5s have all had 1:10 barrels. Before the 7.65x39 bullets became available I used Winchester #B32202 .312 sized 100 gr Hollow point jacketed and cast 32-20 bullets. All shot well enough, considering their limitations of poor BC and SD. During the mid 60s that Winchester bullet killed many yotes from the seat of the farm tractor. I'm sure I will feel the need for a Handi in 7.62x39. Wonder how it will do with these old Winchester 100 grainers?

Wally

Longcruise · « **Reply #29 on:** June 08, 2005, 11:24:27 AM »

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Wonder how it will do with these old Winchester 100 grainers

Gotta be a good combo! I have some current crop win 123 sp in .311 that worked fine in an sks. Should digest equally well in the nef :-)