krinko
Member
You need a case head failure to open the receiver like a flower---and for that you need a brass case.
-----krinko
-----krinko
Blowing up an AK, for fun.
- Thread starter Sam Cade
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THE DARK KNIGHT
Member
Yeah, but the AK was designed to run with steel cased ammo. Almost all the surplus stuff is steel, with the exception of Yugo? But I think that stuff is steel with a brass wash? Not sure.
Either way, I think we should stick to real steel ammo, since that's what the gun is meant to run on.
MachIVshooter
Member
Sam Cade
Member
All of the overcharges that I have shot through it have been loaded into Privi brass and Ive had two case head separations and a stuck case every time.
That is 6 cases packed full of fast pistol powder and a single case full of Triple 7 and its still kicking, but it isnt happy about it.
I do not understand why it isnt coming apart.
That is 6 cases packed full of fast pistol powder and a single case full of Triple 7 and its still kicking, but it isnt happy about it.
I do not understand why it isnt coming apart.
bkjeffrey
Member
I think you should put the gun back into the vice with a full 30 rnd magazine. Chamber a round. Open the top cover and completely fill the reciever with dry sand. Fill it up from the front trunnion to the rear trunnion, all the way up to the top. See if it will run all 30 rounds before the bolt gets jammed up. Quick and easy test there I think. If you really want to get creative pour a little gasoline in the sand to moisten it up.....think of it as excess lube in a sandy enviroment.....
Id like to see it. Heck, while loading the magazine you could even put a little sand in there between each round. You could even fill the gas block and gas tube with sand. I think this will stop the cycle of operation.
Might not "blow it up", but would be a good test of reliability under adverse conditions.
Id like to see it. Heck, while loading the magazine you could even put a little sand in there between each round. You could even fill the gas block and gas tube with sand. I think this will stop the cycle of operation.
Might not "blow it up", but would be a good test of reliability under adverse conditions.
Sam Cade
Member
A little bit of sand in the recess for the lugs will lock up an AK just like it will any other rifle.
Sand in the magazine WILL cause the follower to bind. Grit adhering to the cartridge on the neck/shoulder area WILL keep the bolt from going completely into battery.
After I packed the bore with sand, enough of it blew through the gas port and into the action that I had to rinse it with a hose in order to get it moving again.
bkjeffrey
Member
Sam, I dont believe you 
Just kidding, lets see it though!
Just kidding, lets see it though!
HorseSoldier
Member
Yugo brass is brass.
Lapua also does brass 7.62x39, but I've only ever seen that stuff once here in the US and not sure where they guy who was running it got it.
Sam Cade
Member
...as is that nasty MFS hungarian, E.German IIRC and several others.
Midway has it. Sixty bucks for a box of 30.
Clark
Member
I have blown up a lot of guns.
To quote an old mechanical engineering professor at the U of Wash in 1976, "When a rocket blows up on the launching pad, you don't learn much. .... radial tension.."
The process I believe yields the most information per gun is to do a load work up.
In the early 60's Ackley published a book where he tested military actions that way.
What you would like to learn is the threshold of failure and the primary failure.
That is the weakest link and how weak it is.
To quote an old mechanical engineering professor at the U of Wash in 1976, "When a rocket blows up on the launching pad, you don't learn much. .... radial tension.."
The process I believe yields the most information per gun is to do a load work up.
In the early 60's Ackley published a book where he tested military actions that way.
What you would like to learn is the threshold of failure and the primary failure.
That is the weakest link and how weak it is.
Clark, I don't think the analogy of the rocketship applies here. When a ship blows up on the pad, it's already been prepared as if everything is as it's supposed to be. They expect it to work.
Sam is being generous enough to test some plausible causes of failure. So in other words, when you're trying to blow up the ship on the launch pad, you can learn things.
Sam is being generous enough to test some plausible causes of failure. So in other words, when you're trying to blow up the ship on the launch pad, you can learn things.
Desolo
Member
Wow..... Now this is something I didn't expect to see today. I wouldnt have expected ANYTHING to function like that after what you've done to it.
LOL If you do manage to make it explode and the stock/PG are still intact, any chance you may end up selling them? Ive been looking for a wood set to refinish and use.
LOL If you do manage to make it explode and the stock/PG are still intact, any chance you may end up selling them? Ive been looking for a wood set to refinish and use.
Sam Cade
Member
$13 here, minus the gas tube.
http://www.royaltigerimports.com/co...page=flypage.tpl&product_id=16&category_id=31
Maverick223
Member
That's just ridiculous; who in their right mind would...
...hmm, interesting. Thanks for donating your rifle to science.
Desolo
Member
Sweet! thanks for the link Sam Cade! Thats actually just what I was looking for
C-grunt
Member
Sam... Have you tried obstructing the barrel closer to the chamber. That way the extra pressure doesnt have anywhere to go like the gas tube.
Sam Cade
Member
Yup.
Bullet lodged just past the forearm, well before the gas block.
http://www.thehighroad.org/attachment.php?attachmentid=144138&d=1308439180
Sam Cade
Member
I suspect a case full of Alliant Bullseye would nail the coffin shut on this one.
One would think so if it hadn't already eaten 6 cases full of blue dot, one case full of titegroup and a case full of triple 7.
Managed to bend the piston but its still working.
I wonder if you could get it to run on 30gr of Goex? hmmm...
WardenWolf
member
And the only gun he couldn't detonate was an Arisaka Type 38, and the last one to actually FAIL was an Arisaska Type 99. Those things were BUILT, outlasting both Mosins and Mausers, not to mention the Springfield 1903. Just to give you some idea, to do the test he rechambered each one of them to .30-06. As I recall, he didn't bore out the barrel, he just did the chamber (at least one other person has done that, and HUNTED with it). The Type 38 was designed for a 6.5mm bullet, NOT a 7.62. And he couldn't kill it with a .30-06.
The AK is much the same way. Its simplicity enables it to eat a ton of damage but keep on working. Its large hollow receiver allows it to survive case head separations, and its sturdy front trunion reinforces the barrel's chamber.
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Sport45
Member
??? Isn't an infantry engagement just a rifle match played for keeps? What was the AK designed for, terrorists to harass unarmed civilians?
If I was heading into harm's way I'd much rather have the AR and I hope my adversary had the AK. I'd have the advantage at distance and no disadvantage up close. At least that's the way I see it.
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Jeff F
Member
I think I herd it was something like 15,000 rounds expended per VC dead. Damn, thats a lot of bullets per kill.
longdayjake
Member
The only thing you could have done better was to chrono the loads shot with pistol powder. Who doesn't want to know how fast those suckers are going out there?
Maverick223
Member
+1, not much data on rifles shooting pistol powder...well not much ballistic data anyway, there's plenty of data on metallurgy.
Sport45
Member
That is a lot...
Do you think the VC did any better?
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