Author Topic: 7.62x39 jackhammer  (Read 1927 times)

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magua

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7.62x39 jackhammer
« on: July 01, 2010, 07:43:54 PM »
Hey guys I want to replicate this load in my yugo sks http://www.ebr-inc.net/762x39JackhammerSubsonic.html . I would ideally like to pull bullets from wolf and winchester cases then re-seat a 200 to 220 grain bullet. I  need to know if I need special primers, cases, or powder.  I don't really need the "silence" effect (although that would be a plus).  Thanks, for any help.

Danjal

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Re: 7.62x39 jackhammer
« Reply #1 on: July 01, 2010, 07:49:09 PM »
None of that is needed, but to silence it you'll need a silencer. Theres no way around that. All this is doing is using a heavy bullet at a slower speed. Powders and charges will vary. You'll jsut need to keep it under 1080 FPS to keep it subsonic. Id say about 1060 fps to be safe and allow for your ES to still stay under sub sonic velocities. All you should need is powder, bullets and a seater die to do this in your press.
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magua

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Re: 7.62x39 jackhammer
« Reply #2 on: July 01, 2010, 08:08:08 PM »
Thanks Danjal. So it would be possible just to pull my wolf 123 grain hollow points reduce the powder charge and reload a 220 grain bullet? And do any of you guys know where I can get 220 grain bullets for the sks?

Danjal

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Re: 7.62x39 jackhammer
« Reply #3 on: July 01, 2010, 08:35:43 PM »
Use .308 diam bullets. Fair word of warning, you may need to neck size again. im not positive if the wolf rounds use the correct .312 diam projectiles or .308.

Heres midways 180+ grain lineup of .30 cal projectiles.
http://www.midwayusa.com/browse/BrowseProducts.aspx?pageNum=1&tabId=1&categoryId=17541&categoryString=9315***652***19785***9016***7243***
Nothing makes me feel quite like a man than beating on a midget. -Thed

Anxiously awaiting your next thread describing how you drown puppies in your basement. -Spinich

magua

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Re: 7.62x39 jackhammer
« Reply #4 on: July 01, 2010, 09:09:26 PM »
Will .308 be accurate out of a yugo sks? I have not slugged my bore but are most yugo sks .311? Thanks for the link. :)

noyb72

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Re: 7.62x39 jackhammer
« Reply #5 on: July 02, 2010, 12:04:25 AM »
Magua

You CANNOT "just use less powder." Some powders get dangerous if you do not use an adequate powder charge. You also won't know when you have removed enough to not shoot at excess pressure. Even if you just make a load that is to soft it could not make it out the barrel and that can very easily send you to the hospital with a semi auto. I am certain people have done it and gotten away with it, but please take my advise and get a reloading manual and purchase the appropriate powder. Powder is just to cheap to risk your life over.

Ron
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magua

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Re: 7.62x39 jackhammer
« Reply #6 on: July 02, 2010, 01:25:19 AM »
Thank you guys for all your help. I am thinking about using this bullet http://www.midwayusa.com/viewProduct/?productNumber=1482403505 (is this a good idea). I intend to start off shooting the gun in bolt action and checking after every shot for a squib. I have been looking online but have not found any reloading material for 220 grain loads so if you know of any please post it. And I need to know if it is okay to shoot .308 in a .311 bore


thespork

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Re: 7.62x39 jackhammer
« Reply #8 on: July 02, 2010, 08:34:25 AM »
I'd consider reloading a more standard load before trying this.

You are talking about non standard bullets, of a non-standard size/weight, and a non-standard powder load.

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j20owner

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Re: 7.62x39 jackhammer
« Reply #9 on: July 02, 2010, 10:35:34 AM »
I have a simple question.  Why?
The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. - Thomas Jefferson

soviet shooter

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Re: 7.62x39 jackhammer
« Reply #10 on: July 17, 2010, 06:37:00 AM »
why is simple cause we can lol anyway see if you can buy a box and reverse engineer them its what i do with factory rounds ...... that and ask around here hey whats this powder look like to you


one day when the world ends i will be laughing because we all knew it was coming and yet people will still panic

NCCruffler

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Re: 7.62x39 jackhammer
« Reply #11 on: July 17, 2010, 09:07:20 AM »
I have a simple question.  Why?

+1
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Thrawn

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Re: 7.62x39 jackhammer
« Reply #12 on: July 17, 2010, 11:21:48 AM »
I have a simple question.  Why?

+1

Because I can.


Why ask why? Drink bud dry.  :lol:

magua

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Re: 7.62x39 jackhammer
« Reply #13 on: July 17, 2010, 11:36:13 PM »
I am trying to semi duplicate the Russian 9x39 round without having to neck up the cartridge.