Cmdr. Gravez0r
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- Aug 26, 2007
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I have also been told that domestic x39 is slugged .308. A friend of mine said that for this reason it is not as accurate in CZ carbines and found thins to be true in his experience.
Domestic 7.62x39 .308 bullets rifles and ammo fact or myth?
- Thread starter R.W.Dale
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I shoot as-cast wheelweight bullets from the same mold- the Lee 155-2R.
They shoot beautifully.
My pet load is 14.2 grains of 2400 with that bullet. Cheap, very light recoil, cheap, and accurate. Also, inexpensive!
I use the Lapua brass. Much higher quality, and only a tiny bit more expensive than the Winchester.
They shoot beautifully.
My pet load is 14.2 grains of 2400 with that bullet. Cheap, very light recoil, cheap, and accurate. Also, inexpensive!
I use the Lapua brass. Much higher quality, and only a tiny bit more expensive than the Winchester.
.308 7.62 x 39
I haven't miked commercial 7.62 x 39 but I cast my own to .311. for Norinco SKS
I KNOW a lotta european caliber ammo in W/W white boxes is made by
Privi Partisan and Sellier & Bellot and might be large (ie. .311-.312)
Your statement might be the reason why the Ruger camp carbine is in that caliber which is indeed .308. Ed Harris says it has a large throat to swage imported ammo down to .308
I haven't miked commercial 7.62 x 39 but I cast my own to .311. for Norinco SKS
I KNOW a lotta european caliber ammo in W/W white boxes is made by
Privi Partisan and Sellier & Bellot and might be large (ie. .311-.312)
Your statement might be the reason why the Ruger camp carbine is in that caliber which is indeed .308. Ed Harris says it has a large throat to swage imported ammo down to .308
R.W.Dale
Member
NOPE! Bullet diameter isn't among the reasons that domestic 7.62x39 sucks. My guess is the Remington cases varying in weight by almost 10grs from low to high probably has more to do with it.
these groups were fired from a cz carbine with both diameters of 150grn Sierra bullets
R.W.Dale
Member
Update: My new 20" 7.62x39 AR15 barrel from ER-Shaw also has a .310 bore. So we can hammer one more nail in this myths coffin.
Ruger now offers a limited edition NoI in 7.62x39mm, I would dearly love to know the bbl specs on it.
Ruger now offers a limited edition NoI in 7.62x39mm, I would dearly love to know the bbl specs on it.
Ruger's 7.62 x 39 Bbl.
Responding to list question. C.E. Harris, one of the Ruger engineers connected to that project some time ago, is on a cast bullet list that serves me. Ed's writings os shooting cast bullet loads in hunting with SKS and other military rifles is seminal work. His NEI-designed molds have been adopted by Lee as well for the 7.62 x 39 (Lee 155-2R mould)
iirc his comment was their bbl has a generous leade that swaged bigger than .308 bullets down and permitted effective use of domestic .308 ammo as well.
This appears penny wise and pound foolish and I think (I hope) they have seen the light and went with a strait leade and a .310 bbl.
If they didnt, they are in for more bad times
yodar
Responding to list question. C.E. Harris, one of the Ruger engineers connected to that project some time ago, is on a cast bullet list that serves me. Ed's writings os shooting cast bullet loads in hunting with SKS and other military rifles is seminal work. His NEI-designed molds have been adopted by Lee as well for the 7.62 x 39 (Lee 155-2R mould)
iirc his comment was their bbl has a generous leade that swaged bigger than .308 bullets down and permitted effective use of domestic .308 ammo as well.
This appears penny wise and pound foolish and I think (I hope) they have seen the light and went with a strait leade and a .310 bbl.
If they didnt, they are in for more bad times
yodar
R.W.Dale
Member
Sorry to ressurect theis old topic
but I took some pics for another thread elsewhere that adds to this discussion.
Remington loads in both pics
125grs SP= .3095" with both tools pictured
UMC 123grn FMJ =.310"
but I took some pics for another thread elsewhere that adds to this discussion.
Remington loads in both pics
125grs SP= .3095" with both tools pictured
UMC 123grn FMJ =.310"
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R.W.Dale
Member
Yearly bump in the hopes of dredging up more usefull info on this subject.
here's another confirmation via slugging from over on accurate reloading that the ruger 77 has a .310 bore
more confirmation
in summary so far we've determined
1.that only pre 93 ruger mini's had .308" bores
2.that winchester, remington and federal ammo for this caliber is loaded with "proper" diameter bullets for this cartridge. I will say that my only confirmation so far on the federal is my ballistic reference.
here's another confirmation via slugging from over on accurate reloading that the ruger 77 has a .310 bore
more confirmation
in summary so far we've determined
1.that only pre 93 ruger mini's had .308" bores
2.that winchester, remington and federal ammo for this caliber is loaded with "proper" diameter bullets for this cartridge. I will say that my only confirmation so far on the federal is my ballistic reference.
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R.W.Dale
Member
response from the folks at federal ATK re: 7.62x39 bullet diameters
thanks to the uber fast CS at federal I have a resonse to the following question I just sent out half an hr ago. These guys deserve a big thumbsup
thanks to the uber fast CS at federal I have a resonse to the following question I just sent out half an hr ago. These guys deserve a big thumbsup
Ed Harris
Member
FYI my Sako AII in 7.62x39 has a Hart 14-inch twist barrel and is chambered with the 7.62x39 LAPUA reamer as made by JGS. Good lots of East German and USSR Type PS Ball shoot about 1.5 m.o.a. over long series of groups, whereas handloads with Sierra 155-gr. Palma and 125-grain Game Kings with RL-7 powder are sub-half-m.o.a. when tested off a return to battery rest. Ordinary .308 hunting bullets from Sierra, Hornady and Speer are sub-m.o.a., as are properly prepared cast bullet loads.
You can build a rifle which will handle both foreign and US ammo. The .3114 major diameter forcing cone of 1 degree included angle does not impair accuracy with .308 match bullets when the machine work is properly executed.
You can build a rifle which will handle both foreign and US ammo. The .3114 major diameter forcing cone of 1 degree included angle does not impair accuracy with .308 match bullets when the machine work is properly executed.
R W Dale -
I guess it is my turn to bump this 4 year old thread in hopes of garnering new information.
I have a Century VZ2008 7.62x39 semi auto rifle, it is an American made replica of the CZ USA VZ58 or Czechpoint D-Technik VZ58.
The barrel slugs out at .308, see the following video:
http://www.youtube.com/watch?v=CpuS02aJ2c4
So no longer is the Ruger (pre-93 mini 30) myth a myth it is now joined by the Century VZ2008.
So....
I need detailed load data and instructions from the community on .308 bullets in 7.62x39 brass/casings.
With russian factory ammo I am getting 4 - 5 MOA at a 100 yards, I am trying to cut this in half with handloading.
Thanks,
BB
I guess it is my turn to bump this 4 year old thread in hopes of garnering new information.
I have a Century VZ2008 7.62x39 semi auto rifle, it is an American made replica of the CZ USA VZ58 or Czechpoint D-Technik VZ58.
The barrel slugs out at .308, see the following video:
http://www.youtube.com/watch?v=CpuS02aJ2c4
So no longer is the Ruger (pre-93 mini 30) myth a myth it is now joined by the Century VZ2008.
So....
I need detailed load data and instructions from the community on .308 bullets in 7.62x39 brass/casings.
With russian factory ammo I am getting 4 - 5 MOA at a 100 yards, I am trying to cut this in half with handloading.
Thanks,
BB
R.W.Dale
Member
Sorry bennybone. I don't see how I missed your posting.
To confirm you findings though I just slugged the bore on my century built GP1975 bullpup sporter and the slug measures at (drumroll please) .308" it would appear as though century uses widely avalible "American" 30 caliber barrels for their builds. Much like they used 5.56 barrels for 5.45 guns but not as extreme.
And that's a yearly bump for more info. Anyone with one of the new savages care to chime in?
To confirm you findings though I just slugged the bore on my century built GP1975 bullpup sporter and the slug measures at (drumroll please) .308" it would appear as though century uses widely avalible "American" 30 caliber barrels for their builds. Much like they used 5.56 barrels for 5.45 guns but not as extreme.
And that's a yearly bump for more info. Anyone with one of the new savages care to chime in?
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