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Joined: Sep 2004
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Campfire Ranger
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OP
Campfire Ranger
Joined: Sep 2004
Posts: 17,381 |
Thinking of this or a 300 BO.
Pros and cons of each?
“Live free or die. Death is not the worst of evils.” - General John Stark.
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Joined: Oct 2011
Posts: 8,573
Campfire Outfitter
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Campfire Outfitter
Joined: Oct 2011
Posts: 8,573 |
My Colt AR 7.62x39 worked. Accurate with .308 bullets.
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Joined: Jan 2004
Posts: 3,168
Campfire Tracker
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Campfire Tracker
Joined: Jan 2004
Posts: 3,168 |
The 7.62x39 uppers work, the problem is the magazines as the 7.62x39 likes a very curved magazine and they AR's mag well doesn't lend itself to the curved magazine. This is why CMMG came out with the Mutant so you can use AK magazines.
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Joined: Sep 2004
Posts: 17,381
Campfire Ranger
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OP
Campfire Ranger
Joined: Sep 2004
Posts: 17,381 |
Does the magazine issue make it worth buying a mutant?
“Live free or die. Death is not the worst of evils.” - General John Stark.
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Joined: Apr 2013
Posts: 14,037
Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2013
Posts: 14,037 |
midway has stoner mags that work with the current standard lowers. reason i went 7.62x39 was $$$$ . much cheaper for surp 7.62 over 300bo. of course David you can always get both!!! and then a 458 socom....etc.
the consolidation of the states into one vast republic, sure to be aggressive abroad and despotic at home, will be the certain precursor of that ruin which has overwhelmed all those that have preceded. Robert E Lee ~Molɔ̀ːn Labé Skýla~
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Joined: Jan 2005
Posts: 57,473
Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2005
Posts: 57,473 |
Does the magazine issue make it worth buying a mutant? Mag issue is an issue if you intend to shoot high volume rounds and require high volume mags and perfect function... as I recall we run a 10 or so round mag in my nephews gun.. I've not seen it make a mistake yet, but its not a 30 rounder...
We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....
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Joined: Apr 2011
Posts: 69,135
Campfire Kahuna
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Campfire Kahuna
Joined: Apr 2011
Posts: 69,135 |
300 BO uses standard .556 magazines
"Allways speak the truth and you will never have to remember what you said before..." Sam Houston Texans, "We say Grace, We Say Mam, If You Don't Like it, We Don't Give a Damn!"
~Molɔ̀ːn Labé Skýla~
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Joined: Nov 2011
Posts: 30,879
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2011
Posts: 30,879 |
300 BO uses standard .556 magazines So does the 7.62x40 WT.
You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.
You cannot over estimate the unimportance of nearly everything. John Maxwell
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Joined: Jul 2003
Posts: 499
Campfire Member
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Campfire Member
Joined: Jul 2003
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The two issues with the 7.62x39 are the bolt and magazines. The Stoner mags work well, I use the 10 round mags for hunting. I wouldn't buy a mutant because of magazines!
The bolt is another specific part, and because the diameter of the case is about as big as the AR15 can handle, it has a reputation for breaking bolts. I haven't broken mine yet, but I don't run it hard though.
The Blackout is a good compromise, but it is not quite as powerful, and not nearly as cheap as steel cased 7.62x39. It does have a better selection of factory hunting ammo. Brass can be made from .223, but it is a chore.
I built my 7.62x39 upper before the Blackout was available, I reload for it for hunting. Today I'd buy a Blackout if I reloaded, and convert ,223 brass if I felt really cheap.
TANSTAAFL
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Joined: Jun 2013
Posts: 130
Campfire Member
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Campfire Member
Joined: Jun 2013
Posts: 130 |
Thinking of this or a 300 BO.
Pros and cons of each? Mags now are quiet a bit better than they were 8-10 years ago but some may need a little tweeking. Make sure the spring supports the follower front and rear. You can always bend the feed lips up a small amount to to make the bullet tips hit higher on the feed ramps. Over-gassing has always been a problem. Mid gas barrels work better but an Adj gas block will help barrels that cycle too quick. If you are shooting super sonic the 7.62x39 will be 100-150fps faster than the 300 and the ammo will be cheaper.
"I threw a touchdown pass in the last minute to win the state championship game. I know it was 30 years ago and not relevant to this discussion but it makes me important and believable, it's the only great thing I even accomplished"
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Joined: Nov 2003
Posts: 18,300
Campfire Ranger
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Campfire Ranger
Joined: Nov 2003
Posts: 18,300 |
they really pushed the 300 when it first came out, I remember that Silver fellow was all over defending the BO and trashing everything else. Now after the smoke has cleared its real mission is subsonic and when supersonic is about a 30 carbine power but twice as expensive to shoot. Definately get the AK round and not the BO.
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Joined: Jan 2001
Posts: 21,317
Campfire Ranger
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Campfire Ranger
Joined: Jan 2001
Posts: 21,317 |
The reason to run a 300 bo is due to the fast twist barrel which allows the use of heavy for caliber bullets and to use a supressor.
The reason to run a 7.62X39 is to burn cheap milsurp.
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Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2005
Posts: 57,473 |
I always agreed... super means x39, sub means 300.221
We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....
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Joined: Dec 2002
Posts: 22,271
Campfire Ranger
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Campfire Ranger
Joined: Dec 2002
Posts: 22,271 |
supersonic the BO is a .30 carbine on 'roids, and conveniently uses the same bolt and mags as the 5.56. I like it, myself.
"...the designer of the .270 Ingwe cartridge!..."
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Joined: Dec 2007
Posts: 1,523
Campfire Regular
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Campfire Regular
Joined: Dec 2007
Posts: 1,523 |
I've got a 7.62x39 AR and have had no problems using ASC short straight mags. Can't remember if they are five or ten round but they are the same length as my ten round 6.8spc mags. Makes a handy short range thumper for deer drives in the thick stuff. Shoots the surplus ammo very well.
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Joined: Dec 2002
Posts: 22,271
Campfire Ranger
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Campfire Ranger
Joined: Dec 2002
Posts: 22,271 |
Even in the USA there's a bunch of AK mags out there, so it would be kind of nice to have something accurate & reliable that uses them. Preferably something that doesn't cost a pile of money. May be unobtainium I was real interested on the Rock River AR-47, but it earned poor reviews. CMMG has the Mutant of course, but they're of uncertain parentage and are not cheap.
"...the designer of the .270 Ingwe cartridge!..."
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Joined: Jul 2009
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Campfire Outfitter
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Campfire Outfitter
Joined: Jul 2009
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I run 20 rd ASC mags and have a ball with my 7.62x 39 Its my favorite AR by far
Hank
Thank You Lord for another day,Help my Brother along the way
When you mature,you realize hospitals and schools are businesses,and the Beatles were geniuses
Live Like A Champion Today
NRA EndowmentLife Member,My Daughter is also a Life Member
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Joined: Nov 2003
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Campfire Ranger
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Campfire Ranger
Joined: Nov 2003
Posts: 18,300 |
Who,s x39 upper do you have?
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Posts: 17,090
Campfire Ranger
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Campfire Ranger
Joined: Apr 2008
Posts: 17,090 |
PTR 32, I believe uses ak mags and drums. That's what I would get if it had to be fed by ak mags.
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Joined: Oct 2004
Posts: 37
Campfire Greenhorn
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Campfire Greenhorn
Joined: Oct 2004
Posts: 37 |
I have been very pleased with my PSA 762x39 upper and ASC 10 and 20 round mags. I have also heard about the bolts breaking, but that has not been a problem so far. Watch PSA's sales, I bought mine black Friday for $349 with free shipping. Go for it and never look back.
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Joined: Nov 2003
Posts: 18,300
Campfire Ranger
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Campfire Ranger
Joined: Nov 2003
Posts: 18,300 |
I would like it the BO as well if you could buy a case of practice ammo for $500 or so. However as all agree it is a great subsonic caliber. On the other hand I am intrigued with the idea of a 7.62 x 39 upper and these 10-20 round magazines. Anyone make a good/reliable X39 upper with reliable BCG a chrome lined barrel?
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Joined: Dec 2002
Posts: 22,271
Campfire Ranger
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Campfire Ranger
Joined: Dec 2002
Posts: 22,271 |
The PSA's are nitrided, which is better IMO.
"...the designer of the .270 Ingwe cartridge!..."
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Joined: Nov 2003
Posts: 18,300
Campfire Ranger
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Campfire Ranger
Joined: Nov 2003
Posts: 18,300 |
I wonder if they are better than 2 MOA for 5 shots with some type of decent ammunition or are they just intended for blasting ??
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Joined: Jan 2005
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Campfire Kahuna
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Campfire Kahuna
Joined: Jan 2005
Posts: 57,473 |
nitrided would lean to better accuracy in theory than most any chrome plating....
Of course my nephews cheap upper was always around MOA with Lapua brass and reloads of 125 ballistic tips... that coyote at a bit over 500 one year didn't like one of those at all. And my nephew was a bit amazed at the shot.
We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....
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Joined: Nov 2004
Posts: 9,949
Campfire Outfitter
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Campfire Outfitter
Joined: Nov 2004
Posts: 9,949 |
I bought the PSA for $219 and then got a NiB bolt from a place online that mostly just sales bcg's for around $119. So far it shoots great with asc mags and cheap Tula HP's. I got 3" groups at 100 with a 3 moa red dot sight. Ammo is less than $5 per/20 and I don't have to worry about chasing brass.
I also have a 300 blackout that I really like and it shoots great with reloads but the 7.62x39 is a lot of fun for just blasting. The Tula 122 factory stuff chronies about 2450 from my 16" PSA and my reloaded 300 Bo 16" gets 2250fps with 125 nbts.
Buy the PSA and just go have some fun.
Bb
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Joined: Mar 2004
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Campfire Outfitter
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Campfire Outfitter
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If you are shooting super sonic the 7.62x39 will be 100-150fps faster than the 300 and the ammo will be cheaper. What is the big hold-up with the 7.62x39 velocity-wise? Just looking at capacity, it looks really under loaded throwing a 125 at 2,400fps. Seems like it ought to be doing at least 2,600.
Islam is a terrorist organization.
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Joined: Dec 2002
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Campfire Ranger
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Campfire Ranger
Joined: Dec 2002
Posts: 22,271 |
I think the AK & SKS rifles (and SAAMI ammo) are limited to 40,000 CUP or thereabouts. In a bolt gun or a single shot, 2600 is easy. BTDT.
"...the designer of the .270 Ingwe cartridge!..."
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