Because the bolt motion rifle continues to evolve, so do the expectations of what a “regular” rifle may appear like. Forty years in the past, “looking rifle” meant a walnut inventory with a deep blue end. Twenty years in the past, it might have meant a chrome steel barreled motion with some kind of all climate artificial inventory. These days, it probably means the rifle is a light-weight precision rifle with a chassis. On this publish let’s have a look at how I constructed this contemporary looking rifle.
Earlier than we get to work, let’s check out the next disclaimer.
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It is a customized construct, and like most, it begins with an motion. To acquire an motion, you possibly can both purchase a brand new one or, as is the case right here, take one off of an current rifle. The gun is a manufacturing facility left-handed Remington 700 SPS. The proprietor was fairly keen on the rifle and had been looking with it for a while. Because it was sentimental, he needed to make use of it as a base for his future construct.
The plan is straight ahead. I’ll use the motion and bolt from the unique rifle, match a brand new chrome steel match grade barrel into it, set up a blended brake, set up a match set off, then place all of it in an MDT chassis. The precision capturing and looking worlds will collide and excellence ought to consequence!
I ordered the next components from Brownells for this construct:
My donor rifle, a bone inventory Remington 700 SPS with a left-handed motion. From a machining perspective the truth that it’s left-handed doesn’t actually matter. From a gunsmithing/components perspective it does. The motion, bolt, set off mechanism and a few small components are totally different. For example, the small bolt cease spring is exclusive to the left handed gun, in the event you drop it, chances are you’ll not discover one in inventory for a while.
As soon as I strip the barreled motion from the inventory, I have to take away the barrel. I do that on a barrel vise with an motion wrench. My vise is a Farrell I ordered it from Brownells. I maintain it in my store press that has a pneumatic cylinder to hurry up the method of clamping down on it. I like utilizing a Brownells action wrench that wraps fully across the motion. The barrel is then coated in rosin and clamped down. With a pipe on the motion I can break the motion lose.
After the barrel is eliminated, I assess the actions I’m engaged on previous to deciding on whether or not or not I plan on blueprinting (or truing them). If the motion appears good, I cross on the additional work and use it as is. If it appears just a little wonky (that’s a technical time period), I’ll work on it. The extent of labor I do on it and the way I carry out these operations are additionally motion dependent. As a rule I strive to not carry out work except it’s completely obligatory. This motion was wonky. You may see the tough instrument marks on the entrance of the receiver rings. Based mostly on previous expertise with Remington actions, I pegged this one as a candidate for truing or blueprinting.
For this rifle, I made a decision to make use of my Manson Receiver Accurizing System. The system consists of a faucet, die, and pair of tapered bushings.
Step one within the course of is to make use of the receiver faucet to re-cut the minor diameter of the receiver threads and sq. the 2 receiver lugs. To do that, I merely coat the faucet with oil and gently flip it into the motion. It’s guided by the 2 bushings that had been inserted into the motion.
Subsequent, I run the faucet into the motion. Not like an ordinary faucet, I don’t take a small flip and again it off to interrupt the chip. On this case, I lube the faucet and simply flip it till it bottoms out.
To sq. up the receiver ring, I exploit this ring going through instrument. It has a bronze bushing that turns across the again of the faucet.
That is considered one of might favourite instruments. It quickly produces a clear true floor on the entrance of this motion. Discover the distinction from the earlier image.
I checked the bolt lugs to guarantee that they mated up in opposition to the receiver lugs. To do that, I merely coated the surfaces with a marker, put the bolt in place and rotated the hand up and down. If the marker was lacking on one lug and current on the opposite, I’d have to chop the rear bolt faces. On this case, each lugs of the bolt lined up proper so I may proceed working with out reducing them. I made a decision I needed to work on the bolt face. To true this, I used this bolt face burr and tooling block shown above.
The bolt face tooling block screws into the entrance of the motion. The burr is then positioned into the bolt (beneath the extractor lip) and despatched up by the motion and tooling block. A handheld cordless drill is then run to machine the entrance of the bolt face.
The strong carbide burr makes brief work on the bolt face.
This motion is now prepared for a barrel, and that’s the place I’ll choose up the subsequent publish!
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