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Sighting In on Tack Driver Buildup

Sighting In on Tack Driver Buildup
Jim’s found a gun show buy on an abused Remington 700. Now we’re bringing it back to a tack driving custom with the help of Rocky our local gunsmith.

We’re doing a restoration of an abused Remington 700 Long Action BDL, the deluxe version of the Remington. What’s left of the original cost $300, with a broken stock, with a hand print burned into the bluing on the barrel,  with a bad bore, and with a beat up older Simmons Scope. But it’s the Remington long action that’s worth the money as the basis for a tack driver build up.

The first stage of the project is stripping off all the useless parts, down to the action.

SI-12-11The Remington is chambered in 7mm Magnum and, while we could change to any of the magnum cartridges, we’re keeping the 7mm chambering because it’s a very versatile cartridge that can be loaded for anything from varmint to elk.  And it’s flat shooting out to 300 yards.

 

SI-12-8The Accurate Innovations Golden Hunter replacement stock. with a one inch Pachmayr Decelerator recoil pad already installed. Inside is the Chassis, as they call it, machined bedding block made from aircraft grade aluminum that extends all the way out to the front sling swivel. 

SI-12-2The new barrel we’ve selected is from Shilen. It’s stainless steel and rifled for the 7mm with a one-in-nine twist.  That one revolution of the bullet every 9 inches. The Shilen is a barrel blank with no chamber and no threads yet for the receiver. That’s where Gunsmith Rocky comes into this build up.  He’s next in the process, squaring the action, reaming out the chamber and crowning the muzzle for the highest possible accuracy.  That will be next time as our Remington Tack Driver restoration

The build-up of our Remington 700 continues at Rocky’s gunsmithing shop as he squares the action, chambers, crowns and fits the new barrel, and machines the recoil lug. This is the professional work required to build a 7mm Magnum tack-driver.

We started with an abused Remington 700 with bad bluing and a broken stock.  We stripped it down to the barrel and action and selected a new Shillen Barrel in the same caliber, 7 mm Magnum.  Now it’s Rocky McWilliams’s turn, our Shooting USA gunsmith.

Rocky’s Process:

Remove the old barrel and blue print the action:

  • Squaring the front of the receiver for a perfect match of the receiver and new barrel.
  • Hand lapping the recoil lugs on the bolt.
  • Squaring off the bolt face, using a cutting mandrel powered by a drill

Working on the Barrel:

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cutting the breach to 1.060 inch before cutting the threads.

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Remington Seven-hundreds have 17 threads per inch, they’re cut on the lathe.

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Milling a counter bore on the barrel to allow the bolt to close inside the barrel.

 

Then, there’s cutting the chamber — 7mm Remington Magnum — And Polishing.

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Cutting a target crown at the muzzle and lapping it with a brass ball.

 

Next, polish the outside of the barrel.

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The Final Step is assembling barrel and receiver with a new, surface-ground recoil lug.

SI25-04-1Now we’ve got to get the action into a stock to make it useful. The stock we have selected is the Accurate Innovations replacement unit for the Remington.  It will take a good deal of fitting to match the shape and float the new barrel.

And then John adds a suitable scope, the Trijicon Accupoint. It’s 2.5  to ten, variable power with a 56mm lens and illuminated reticule. We’ve selected Weaver Grand Slam dove-tail rings with two-piece bases.

 

 RELATED LINKS


Accurate Innovations Gun Stocks 
Shilen Barrels 
Trijicon Accupoint
Weaver Mounts

Accurate Innovations Gun Stocks
Shilen Barrels
Trijicon Accupoint
Weaver Mounts


ProTipsAllan

 

Reloading Tips from Allan Jernigan –
Flash Hole Preparation

             

 



Jerry2-1 

Pro Tips –

Jerry Miculek on Revolver Draw

 

 

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