Reply to Thread

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Message: <blockquote data-quote="Sniper John" data-source="post: 850103" data-attributes="member: 8580">If you did not already know it. Bore diamters can be all over the place with surplus rifles, but one thing with your M39 is that the Finn'd rifles (with some exceptions) where barreled with a smaller diameter bore than the original Russian Barrel. Then the chambers were reamed to lengthen the throat to allow use of not just the Finnish ammo, but also the Russian made ammo having the larger diameter bullet.If your M39 has the D designation on it, it has had the throat lengthened as most did.</blockquote>