The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > Handloading, Reloading, and Bullet Casting

Thread Tools Search this Thread
Old September 22, 2011, 01:36 PM   #1
Senior Member
Join Date: February 5, 2009
Location: Lexington, SC
Posts: 106
Bullets for SKS

Friend just bought an SKS. I see in Hornaday manual that SKS's have a bore diameter of .311" and that a .310" bullet rather than a .308 is the most accurate. I assume all commercial 7.62x39 ammo has .308 bullets, but does surplus military ammo have .310 bullets? If so, wouldn't it be dangerous in a Mini-30?
HShack is offline  
Old September 22, 2011, 01:46 PM   #2
Join Date: March 4, 2005
Location: Ohio
Posts: 13,648
No. As an example, the military specifies .30 caliber barrels at .3065" to.3095" groove diameter and bullets at .307" to .309". So they allow for up to 0.0025" interference fit to be normal, and don't even change the load specs for it.

A number of experiments have been done over the years to check pressure rise with bullet diameter, and they tend to show, as long as a bullet isn't so fat it causes the case neck to have trouble chambering, that once it starts swaging into the lands its pressure doesn't go up a large additional amount. Just don't load one too fat to chamber freely. I don't like anything over 0.002" diameter, because accuracy starts to fall off. I get that information from shooting cast bullets, but presume it applies to jacketed ones.

P.S., see MKL's post, here, on P.O. Ackley's experiments firing 8 mm (.323") bullets down a .308 bore.
Gunsite Orange Hat Family Member
CMP Certified GSM Master Instructor
NRA Certified Rifle Instructor
NRA Benefactor Member

Last edited by Unclenick; September 22, 2011 at 01:54 PM.
Unclenick is offline  

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 10:55 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2016 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent:
Contact Us
Page generated in 0.06462 seconds with 9 queries