Re: mosin nagant barrel mount bipod
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Wannashootit</div><div class="ubbcode-body">Forget about a bipod on a barrel...never a good idea.
Far as free-floating the barrel on a Mosin being a bad idea, I never "got" that argument. Free-floated both of mine (one a sporter) and shrinked the groups dramatically.
As a point of fact, the Fin M28/76 Target Rifle, is designed around a M28/30- with a fully free-floated barrel...so I don't get that argument.
However, every rifle is different... </div></div>
The 91/30, 28/30 and 28/76 certainly are completely different animals from each other. The longer, thinner barrel of the 91/30 is a whipping harmonics nightmare. There is a reason that Soviet snipers wrapped their barrels at the front band and also, not by coincidence, that this is almost exactly the same length that the carbine barrels were cut to.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: "Grizzdude"</div><div class="ubbcode-body">Most likely due to the stock not being perfectly strait at the muzzle end. due to warpage I and most 91/30 owners are unable to "completely" free float the barrel due to this problem. If the stock were cut about 2-3" back I would be able to completely free float the barrel.</div></div>
It's true that many of the stocks that come on these guns are warped, but the later refurb stocks can be some of the best ones around. I've been through thousands upon thousands of rounds testing all this stuff, with every combination of floating, shimming, wrapping, corking, etc. that you can think of. I have NEVER seen a 91/30 that will shoot better groups when it was completely free floated (and, yes, I know how to free-float a barrel) than it would when it had the right amount of pressure applied at the the right spot. When you get a thicker/shorter barrel, that can change, but even the M39 was designed with tensioning the barrel in mind.
John