Mosin won't stay on target is it me?

[jeeptim]

Hey Guys
Went to the range on Fri and shot my mosin 91/30 it has been upgraded a bit.
Bedded in an ATI stock with a timney trigger set to 2lb an rock solid scope mount with a simmons mil dot white tail scope and a bi-pod shooting factory PPU 150gr. at 100yds.
Took about 15 rds to get it dialed in 5 rds dead center other 4 3/4 inch or less out then I started shooting at a clean target that was posted below and bupkis all over the place no grouping all about 10 inches apart burned up that 20 rnds and had nothing to work with to adjust.
I checked every locktighted screw mount all seemed good with the rifle.
Ol'most seemed that once it warmed up all went bad. The ammo was of the same lot I am just at a loss.

 

[ColtPythonElite]

I'd try a different scope.

 

[Gunnerboy]

The nasty mosin recoil claims another scope....

 

[jeeptim]

REALLY! All the feedback on this guy were good price was good Really!
I guess i will mount the old leo or bushnell and see if that fixes it up.
Thanx

 

[barnetmill]

Also check your bedding once you are sure that the scope is ok.

 

[wildchild2010]

How does it shoot at 25, 50 yards with iron sights? I would start there.

 

[jeeptim]

Scope prevents the use of iron

 

[nathan]

Mosins shoot just fine in original configuration. Many krauts lay dead in Stalingrad thanks to simple Mosins with iron sights fired by peasants of the Soviet empire.

 

[tryshoot]

I would check scope.

 

[jeeptim]

Mosins shoot just fine in original configuration. Many krauts lay dead in Stalingrad thanks to simple Mosins with iron sights fired by peasants of the Soviet empire.

Would love to use Iron sights but my eyes are so bad cant see the the target very well.

 

[nathan]

The Darrell scope mount is the simpliest design to install scope. Many attest to it.

 

[fireman 9731]

Make sure that your action screws are tight.

 

[mortablunt]

Locktite your scope.
Or just use irons.

 

[mgkdrgn]

Would love to use Iron sights but my eyes are so bad cant see the the target very well.

I can't use 'em either .. for the same reason.

google "mojo peep" ... you'll thank me later.

 

[brnmuenchow]

I often come to the conclusion that for a $100 rifle: "Do I want to spend good money on a better than entry level priced scope? or bite the bullet and get a really good scope?" My answer keeps coming up, Yes... get the better scope. If I have already taken the effort to modernize a Mosin with an ATI stock, Timney trigger, etc.. etc.. than go for the gold and get a scope that will take a .30-'06 pounding. It may sound crazy spending that kind of money on a scope but in the end the 7.62X54Rmm round is worth the distance and accuracy. (I would however suggest before you spend any major cash: Take off the scope and get someone who can still fire iron sights that can shoot good and make sure it is not an ATI vs. Mosin main assembly issue for sure.)

 

[BUCKrub91]

make sure the scope is secured tightly... did you loctite the scope mount?

 

[Tempest 455]

Did you pillar bed it? Also, if an ATI stock, is the barrel the original length?

 

[jeeptim]

yup EVERYTHING is lock tighted piller bedded barell is un touched action screws are tight. it has to be the scope going to take it out with some quality reloads and see what happens.
Thanx

 

[LoonWulf]

Take a known good scope along for reference. And i do mean a KNOWN good scope, I had two bad scopes on my nagant one after the other, one was crap, one was quite expensive and is on its way back to the factory for free repair. Wierd happens, as the expensive scope has been on my 06 for a few years, and was fine as far as i knew.

 

[Tempest 455]

Is the barrel the original length?

 

[headoftheholler]

As mentioned before check those action screws, they affect accuracy if loose. Also I've found out the hard way that a cheap fixed power (4x) scope holds up better than an adjustible high end scope under hard recoil with my 45-70 Guide gun. Also dont forget to make sure scope rings and mounts haven't worked loose.

 

[bigedp51]

Just because the action screws are tight doesn't mean the receiver isn't moving, on some Mosins with wood crush you will find fiberboard shims under the trigger guard to tighten up the bedding.

*Wood crush below the receiver and trigger guard, if excessive the receiver will float and move around.

 

[njcioffi]

Also, is the bipod you mentioned mounted to the stock, or the barrel. If it's the barrel, get rid of it.

 

[Tempest 455]

Why I am asking about barrel length. I researched this topic in depth before I modified a 91/30 with an aftermarket stock.

An Original 91/30, even though the barrel is very long, it's supported by the stock much of the way. In fact both on bottom and top w/ the hand guard. Many of these rifles (Finns) are very accurate with some bedding application.

I have seen some other modified Mosins at the range, some with longer barrels and some short. I'm convinced if you use an aftermarket stock such as ATI or Boyds which is shorter, the barrel must be shortened to lessen barrel whip.

That may not be the problem in your case but I think trying to make it accurate will be difficult with a long barrel. Mine is 24" and I think a touch too long. I had to spend a lot of bedding the stock and how much upward pressure was needed for it to group well.

Lastly, I have found also, 5 rounds is about max on these barrels (without original stock/handgaurd) before they start to move. I let it cool down good before I shoot again.