how to mount a scope on a mosin nagant

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Just lately I acquired a name from a buyer asking if I might mount a scope to a Mosin Nagant. He mentioned he had the scope, the mount, drill bits, every thing. He is purchased a pleasant little equipment off of Amazon that had every thing you wanted. He simply wanted it mounted. It was to be a Christmas current for his son and he’d watched a YouTube video of tips on how to do it however felt it will be higher to have a gunsmith do it.

Having gone again and watched the YouTube video he referenced, I positive am glad he introduced this factor to me fairly than making an attempt it himself. A few of the key components that make the factor work correctly aren’t put in by anybody I can discover exhibiting their strategies on the interweb. Studying via the critiques on a few of these issues, the anticipated poor outcomes are all around the web since individuals aren’t putting in them accurately.

Studying: tips on how to mount a scope on a mosin nagant

There are three predominant components to putting in this equipment. The bolt, the mount itself, and modifying the inventory to just accept the brand new mount.

The bolt

The first step was to vary the bolt.

The before picture of the Mosin nagant bolt
The earlier than image of the Mosin nagant bolt

On some rifles you warmth and bend the bolt. This provides clearance from the bolt deal with to the scope. It additionally makes the bolts extra “Americanized” and extra agreeable to an American shooter. This explicit bolt has a brief physique and the equipment got here with a brand new bolt so we simply lopped off this previous one with the belief Porta-band.

Machining flat the rough cut face of a bolt
Machining flat the tough minimize face

As soon as the deal with was off, I moved over to the mill the place I machined the face completely flat. This made for correct mating of the faces and likewise made it look significantly higher.

Locating the center of the bolt handle face
Finding the middle of the bolt deal with face

As soon as it was flat, I needed to find the middle of the circle. This was tougher than it seemed as a result of the steel was not truly spherical however misshapen considerably. I received it as shut as doable for the situation of the forging. Inside a number of thousandths.

Center drilling the hole in preparation for final drilling
Middle drilling the opening in preparation for closing drilling

As soon as the middle was positioned, I locked the mill in place and middle drilled the preliminary gap.

Drilling the hole for the new handle.
Drilling the opening for the brand new deal with.

Then I drilled the opening itself. There’s a equipped drill bit and faucet that comes with this equipment. The drill bit minimize very poorly and was clearly manufactured from jello or butter or one thing equally ineffective at drilling steel. I needed to take it to the grinder a number of occasions to sharpen it in an effort to get via the few drilling operations of this job. Nevertheless with sharpening, it did do the job so it was adequate for this equipment. I doubt it will have labored for somebody making an attempt to do it like on the YouTube video.

Tapping the 6 x 1mm threads
Tapping the 6 x 1mm threads

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I wasn’t courageous sufficient to energy faucet this gap. I merely rotated the mill by hand and every thing tapped simply tremendous.

Bolt handle installed and timed
Bolt deal with put in and timed

Timing the deal with is a matter. It must be torqued to the proper spec, and line up on the proper place on the similar time. I will need to have been residing proper today as a result of it got here out good on the primary strive.

I might given the client the selection of utilizing Loctite to safe the bolt, or TIG welding it in place. Have been it my gun, I might have welded it however the price of the additional work was greater than he wished to do. For plinking on the vary, quantity of pink Loctite will likely be tremendous.

The mount

There was little bit of fidgeting with the proper scope mount to get it within the place. This scope mount is made for the attention aid of the usual Mosin Nagant inventory. Nevertheless my buyer had added a butt pad/extender to his gun so the attention aid had modified. That meant I wanted to maneuver the scope mount again a bit to try to compensate. After positioning the mount about 10 occasions, I lastly had it the place I wished it and marked my place. However first, I had to determine how this mount was made to go on.

The equipment comes with two bigger screws, two smaller screws, and two floor stainless pins. There have been six holes, and 6 items of one thing that went into the holes. The bigger screws maintain the mount to the scope. The smaller screws are mechanical locking screws that maintain the big screws in place and maintain them from backing out. The pins had been index pins that truly maintain the mount in place. Straightforward.

Besides the pins did not match the holes. There have been no directions with the equipment however the equipment is bought as having every thing you could set up it. I seemed on Amazon for any ideas from a earlier installer. Nothing.

I watched the movies on YouTube. The pins had been proven as a part of the equipment however they had been by no means put in by the customers. I feel the idea is that the screws maintain the mount in place and the pins? Meh, have to be additional.

Besides that is improper. The pins are what maintain the mount in place. The lock it into one place so it would not transfer underneath recoil. The massive screws are what maintain the mount from backing off of the pins. However they do not maintain the mount in a hard and fast place. In the event that they did, you’d by no means get the screws into the holes. They’d be too tight. In actuality, there’s slop within the holes for the screws, as there ought to be. With out the pins, the mount would shift round underneath recoil and the gun would by no means maintain a zero. Then the ultimate set of small screws mechanically lock the large screws in place. Type of a steel model of Loctite. Now that I had a plan, it was onto the work.

Drilled main screw holes in the receiver
Drilled and tapped predominant screw holes within the receiver

These had been positioned, middle drilled, drilled, and tapped similar to the bolt gap was beforehand. As soon as they had been tapped, I might mount the scope base and use it as a information for the index pins.

Drilling the index pin holes in the scope mount and the receiver
Drilling the index pin holes within the scope mount and the receiver

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With the mount secured in place by the screws, I drilled via with a #9 drill bit. This bit is .001″ smaller than the pins measured. This was on objective. We wish the pins to be larger than the opening, however simply barely.

Heating the receiver to expand the metal
Heating the receiver to broaden the steel

With all of the machining accomplished, I went again to my gun room to do closing set up. The index pins went into the freezer and the receiver went into the vice. I cleaned up and did some workplace work whereas the pins frozen. Then I heated the receiver and the scope mount until it was toasty however not glowing pink.

With the receiver sizzling, and due to this fact larger, and the pins frozen and due to this fact smaller, I tapped the pins into place with a small hammer and punch. The simply pressed in underneath power. I then left every thing alone to return to room temperature. When every thing cooled, the additional measurement on the pins locked the mount to the receiver as strongly as might be accomplished with this setup. That is the important thing to this mount. The screws simply maintain it from backing off. They do not truly maintain it in place.

The mounted scope and bolt handle
The mounted scope and bolt deal with

You may word that this model of scope sits simply to the left of middle. That is they means these items are designed. I did ask the client if he wished it totally to the left or rotated some extra in the direction of middle. This was the place he wished it.

Modifying the inventory

Modifying the stock actually takes the most time
Modifying the inventory truly takes probably the most time

Doing the machining work is generally setup. When you get every thing dialed in and locked in place, it goes fairly shortly. Doing the wooden work is all hand work and take a look at becoming. It is fulfilling work as a result of it is quiet and meditative nevertheless it does take some time.

Filing out the wood on a stock
Practically completed

The completed product

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I merely bore sighted the scope onto the gun and left the dialing it in to the client.

All in all this was an fulfilling mission. For what the client had within the rifle, the equipment, and my labor, I am unsure he had his cash’s price out of it as a pure shooter however for the cool issue he has a very nice gun.

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