Mosin Bolt Woes

:D

Now...
Get yourself a set of dies, a box of Sierra 174 grain MatchKings, some Varget, and see what she'll do!
 
If it shoots consistent groups at 100 yards, I will start handloading. Im just worried it wont shoot well. The reason it wasnt shooting well in the past was because of the heavier bullets. It was just slinging 186.6 Grain Yugo Surplus and 180 grain Winchester all over the place. But at 30 yards, I got a 1" group right in the bullseye with 147 grain. surplus. So if I do handload, It will most likely be 150 grain. Im not sure if 174 grain will shoot well or not. Im pretty sure it's the twist in my rifle. Anway, I plan to keep you guys posted on groupings.
 
Thats whats great about reloading, you can often/usually tailor your loads to the gun.

And with some, you can turn beasts you dont shoot well, into ***** cats, that you actually like to shoot and shoot better. :)

You can check the twist rate with a cleaning rod.
 
I had a mosin that was super tigh when chambering rounds i had to replace the bolt face as it was not quite big enough. Try replaceing that i bet it will fix your problem
 
Using a rod that is free to rotate, put a snug patch on a jag or tip, slide it in the barrel.

Mark the rod with a Sharpie at the muzzle or chamber, depending on how youre doing it, and mark a line along the rod as an index.

Then draw or push the rod through the barrel, while watching the index mark make one revolution. Then mark the rod again. Remove it and measure the distance between the two marks.
 
The twist should be plenty fast for any available bullet. As to why it likes the light bullets better, it is difficult to say, but the twist rate is not the reason.

Mine has the same twist as yours, and shoots the 180 and 174 just fine, as do millions of other Mosins.

A twist as low as 1:12 should stabilize a 180 gr bullet.
 
From the folks over at the Mosin-Nagant forum, this is a common happening among Mosins. Not everyone's shoots Heavy Ball well, mine just happens to be one of them. I guess the fact that it was machine gun ammo played a part in it too.
 
Wow, and that's an M39, those were supposed to shoot the heavier loads, right? I've heard that none of the S&B ammo was terribly good, either.
 
How do I check twist with a cleaning rod?
Click to expand...

Easy: Just put a brush or patch on the end of the cleaning rod, shove the rode about 3/4 of the way down the bore from the muzzle end, make a mark at the 12:00 o'clock position on the rod, then slowly pull the rod out until that mark again reaches the 12:00 o'clock position. Then, just measure the distance from the mark to the muzzle; This will tell you how many inches equal one rotation of the bullet.:)
 
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