actually found once fired 7.62x39 brass. primer question. - The Firearms Forum

The Count · 08-13-2010, 09:16 AM

AK brass is really hard to come by, even if you are willing to pay for the new stuff. so i considered myself really lucky when i saw (supposedly) once fired 7.62x39 brass for only $17 per hundred. just to make sure i emailed the company to confirm that these were boxer primed and they said yes.

after reading some posts it appears as this brass can come with EITHER large or small primer pockets. is this true? then i heard you should use a primer uniforming tool or something like that. did not think that it was getting so involved. appreciate if someone could clarify...

JLA · 08-13-2010, 11:20 AM

Yes the 7.62X39 and the 6.8 SPC use both large and small rifle primers depending on the MFGR of the case. I believe remington uses the Large pocket for both and everyone else uses the small. I dont know why exactly, but among benchrest circles the small rifle primer even in cases as big as the .308 yield better consistency (yes they do make .308 palma cases with a small primer pocket)

steve4102 · 08-13-2010, 04:43 PM

Remington used the SR primer for the 7.62x39 and all other manufactures use the LR. Remington has since switched to the LR as well. I buy my x39 brass new and unfired for $22.50/100 at my local shop. He has a ton of the stuff, Lapua brass headstamped K&P.

The_Rifleman · 08-13-2010, 11:30 PM

Quote:

Originally Posted by The Count

then i heard you should use a primer uniforming tool or something like that. did not think that it was getting so involved. appreciate if someone could clarify...

Many long range shooters use a primer uniforming tool to get better consistency. Unless the rifle is being used for competition, I wouldn't worry about it.

EDIT: I should clarify... It is actually a Flash Hole Uniformer Tool.

jack404 · 08-13-2010, 11:53 PM

cheers for the link and idea eh !!!

Alpo · 08-14-2010, 12:16 AM

There is a flash-hole uniformer, but there is also a primer pocket uniformer.
http://www.midwayusa.com/viewproduct...tnumber=445053

This tool has a carbide cutter on the face of it, and insures that the bottom of the pocket is flat and uniform. This prevents any lopsided primers. What I bought one for was a batch of brass that had the pockets slightly too short. Chucked that sucker into my cordless drill and deepened 'em all a couple of thousands. Now the primers seat below flush, like they oughta.

The_Rifleman · 08-14-2010, 12:31 AM

Quote:

Originally Posted by Alpo

There isthere is also a primer pocket uniformer.

That is what I first searched for but didn't get any results; so I figured I dreamed it... There goes my billion dollar idea!

08-13-2010, 09:16 AM	#1
The Count V.I.P. Member Join Date: May 2010 Posts: 264	actually found once fired 7.62x39 brass. primer question. AK brass is really hard to come by, even if you are willing to pay for the new stuff. so i considered myself really lucky when i saw (supposedly) once fired 7.62x39 brass for only $17 per hundred. just to make sure i emailed the company to confirm that these were boxer primed and they said yes. after reading some posts it appears as this brass can come with EITHER large or small primer pockets. is this true? then i heard you should use a primer uniforming tool or something like that. did not think that it was getting so involved. appreciate if someone could clarify... -->

08-13-2010, 11:20 AM	#2
JLA TFF Moderator/Host Join Date: Feb 2007 Location: Heart Of Texas Contributor Posts: 17,308	Re: actually found once fired 7.62x39 brass. primer question. Yes the 7.62X39 and the 6.8 SPC use both large and small rifle primers depending on the MFGR of the case. I believe remington uses the Large pocket for both and everyone else uses the small. I dont know why exactly, but among benchrest circles the small rifle primer even in cases as big as the .308 yield better consistency (yes they do make .308 palma cases with a small primer pocket) __________________ It takes 43 muscles to frown, 17 to smile, and 3 for proper trigger squeeze. The latest caliber or gear is no substitute for experience and skill. Rifles and cartridges don't make hits -- shooters do. Fact of life: After Monday and Tuesday, even the calendar says WTF!

08-13-2010, 04:43 PM	#3
steve4102 Former Guest Join Date: Jan 2006 Location: Minnesota Contributor Posts: 2,760	Re: actually found once fired 7.62x39 brass. primer question. Remington used the SR primer for the 7.62x39 and all other manufactures use the LR. Remington has since switched to the LR as well. I buy my x39 brass new and unfired for $22.50/100 at my local shop. He has a ton of the stuff, Lapua brass headstamped K&P.

08-13-2010, 11:53 PM	#5
jack404 Former Guest Join Date: Jan 2010 Location: Australia Contributor Posts: 17,622	Re: actually found once fired 7.62x39 brass. primer question. cheers for the link and idea eh !!!

08-14-2010, 12:16 AM	#6
Alpo Advanced Senior Member Join Date: Feb 2007 Location: NW Florida Posts: 8,652	Re: actually found once fired 7.62x39 brass. primer question. There is a flash-hole uniformer, but there is also a primer pocket uniformer. http://www.midwayusa.com/viewproduct...tnumber=445053 This tool has a carbide cutter on the face of it, and insures that the bottom of the pocket is flat and uniform. This prevents any lopsided primers. What I bought one for was a batch of brass that had the pockets slightly too short. Chucked that sucker into my cordless drill and deepened 'em all a couple of thousands. Now the primers seat below flush, like they oughta. __________________ Meddle not in the affairs of dragons, for thou art crunchy, and taste good with catsup - George of Lod, Year of Our Lord 297 I always take precautions. Beware the Evil Bullet Fairies.