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Author Topic: 7.62x39 subsonic  (Read 5243 times)

Offline kevins7189

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7.62x39 subsonic
« on: May 02, 2015, 12:54:30 PM »
Been looking for recipes for 7.62x39 subsonic.  Only one I could find uses a powder I've never heard of Vihtavuori N160 Smokeless Powder.  Is that available anywhere around here? w/150gr bullet and 1.27 grams of powder.
Anyone have any other recipes?
"Assuming" it should be pretty similar loads to 300BLK subsonic, like accurate 1680 with 220gr bullet ~11grain.
I'm thinking maybe trying to reverse engineer the ones I have before I run out, Engel "Jackhammers" 220gr. 
thanks!



« Last Edit: May 02, 2015, 05:06:22 PM by kevins7189 »
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Offline jonm

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Re: 7.62x30 subsonic
« Reply #1 on: May 02, 2015, 03:46:46 PM »
where are you going to get .311" 220gr bullets? or are you just going to put .308 down the larger bore?
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Offline kevins7189

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Re: 7.62x39 subsonic
« Reply #2 on: May 02, 2015, 05:21:35 PM »
.308 and .311 are only .003 different and seems to be common to shoot .308 in .311 barrels.
It worked for me, here is a wolf 7.62x39 (measures .311) and the jackhammer subsonic 220gr measure .308.
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Offline shooter

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Re: 7.62x39 subsonic
« Reply #3 on: May 02, 2015, 06:05:18 PM »
 the 303 british and I think the 7.7 jap both use 311-312 bullets, they might make a heavy you can use,

   what are you shooting these out of?  I use cast 220 grain in my 300 whisper
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Offline kevins7189

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Re: 7.62x39 subsonic
« Reply #4 on: May 02, 2015, 06:20:13 PM »
Yugo M92
From what I can see a .308 220gr should work.  Just wondering if anyone has experience/recipes for this.
And, if this Vihtavuori N160 Smokeless Powder is available locally?
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Offline FarmerRick

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Re: 7.62x39 subsonic
« Reply #5 on: May 02, 2015, 06:26:32 PM »
From a FalFiles.com post: http://www.falfiles.com/forums/printthread.php?s=eb3918cdff8e557ae0ac944febd4570c&threadid=120666

Quote
December 06, 2002 00:45 Post #9

--------------------------------------------------------------------------------
USE THIS DATA AT YOUR OWN RISK !!!!!

To make Subsonic 7.62x39 I start with Winchester brass and Winchester large rifle primers.
17 grains to 18 grains of Winchester 748 powder.
(17 grains = 1040) ( 18 grains = 1098) FPS.
Sierra 180 grain spitzer, diameter .311 code # 2310
This bullet is made for .303 Brit. but works well for this application.
Load to the same OAL as ball.
Out of my Colt 16 inch barrel I get around 1 inch groups at 25 yards, opens to about 5 inches at 100 yards.
This load will cycle my rifle, but just.

You should test your loads over a chronograph because when trying to stay under speed of sound little things can make a big diffrence.

AS WITH ANY LOADING DATA USE AT YOUR OWN RISK !!!!!


crappy accuracy, but may be a starting point for you as far as the powder load goes.

I do not reload, I'm am just passing along what the Googles found in a search.
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