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 Bub0214 
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Joined: Jun 2010  KY, USA
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Posted: 2/29/2012 10:37:25 AM
Jessie, I recall you mentioned a few months back you folks might start carrying 5.45x39 uppers for use with the surplus russian ammo, but were having some trouble getting things to run smoothly. Any progress or was this just an interesting ideal that really is not worth the bother? Bub
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JTDistributing
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Joined: Feb 2001 KY, USA
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Posted: 2/29/2012 2:22:29 PM
I've been working on the issue when I can, but so far have not gotten any solutions. I still have malfunctions with deep primer strikes, but no ignition. I haven't given up on the caliber yet, just still have a few bugs to work out.
Jesse |
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Posted: 3/2/2012 9:43:22 AM
Do you think it's a trigger issue or ammo related?
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JTDistributing
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Posted: 3/12/2012 10:38:04 AM
I believe the problem to lie in the diameter of the firing pin, it isn't the same diameter as the AK firing pin, so ignition doesn't always occur. A bit more protrusion wouldn't hurt, but I still think it's the diameter. As time frees up, I hope to get this solved soon, so we can get those shipping.
Jesse |
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Posted: 3/16/2012 12:31:56 PM
Jessie, A couple days back I had some free time so I did an internet search on AR 5.45x39 uppers (for use with cheap surplus ammo). There seems to be two schools of thought on the subject, they are either the greatest thing since sliced bread or the worst mistake in the history of mankind. The big negative claim is corrosive salts will be blown by the DI system into all parts of the gun including the lower (rusting springs, bolt catches, forward assist, etc) and be all but impossible to clean. The positive is that 5.45 ammo is still relatively cheap and available for the time being and shooting guns is FUN.
I assume the truth is somewhere between the extreme positions and wondered had you had any problems with your test gun. |
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JTDistributing
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Joined: Feb 2001 KY, USA
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Posted: 3/19/2012 11:09:52 AM
I haven't had any issues yet, but I'm sure that it won't be any worse than the 7.62x39 uppers on corrosion. The test lower probably has so much carbon build up on the internals from running with a suppressor that the salts haven't hit metal yet!
When growing up, I was taught that after shooting corrosive ammo (7.62x39, 8mm, Egyptian 9mm, etc.) to use the hotel bath tub filled with warm soapy water to kill the salts. At home we used a trash can to do the same thing. After the bath, either use a hairdryer or an air hose to blow the water off, then lube em up. If you use crappy ammo, you got more work to do afterwards, it's just part of the trade off for saving $$. If you shoot enough cheap ammo, you can save enough money to throw away the gun when you're done with it and buy a new one, or to pay to fix all the damage that the bad ammo caused. Lesson learned with a transferable M-60 in the '80's. Saved over $5K by shooting cheap ammo, cost about $5K to fix the gun after it blew up. Jesse |
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Posted: 3/20/2012 9:01:29 AM
Jesse, That was a tough lesson. Ruining a $300 AR lower no big deal, doing $5000 damage to a M60 makes for a bad day. Thanks for the info on corrosive ammo. Bub
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JTDistributing
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Joined: Feb 2001 KY, USA
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Posted: 3/20/2012 12:23:12 PM
That lesson sucked learning. We had been warned about the problems with the ammo, but we had went through over 100k rounds and hadn't had any issues, so we thought that we knew best. It was great till that kaboom! Technically we still came out ahead, but we took the hit at one time to get receiver repaired extensively, replace most of the parts in the gun, and wait for forever while the approval for the transfer to the C2 to get it repaired, repair done, and the return transfer, but with all of the headache, and the wardrobe change after the kaboom, if I had it to do over again, we'd have been using the good stuff.
I'd like to hope that our tuition at the school of hard knocks might save someone else learning the same lesson! Jesse |
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