September 13th, 2020

Sunday GunDay: Home-Built 7.62×25 Tokarev Custom Rifle

rifle tokarev 7.62x25 pistol cartridge varmint rifle custom

rifle tokarev 7.62x25 pistol cartridge varmint rifle customHere’s something you’ve never seen before — a full-size rifle chambered for the tiny 7.62×25 Tokarev round. This rifle was a fun project by Les E., aka “scasa” in our AccurateShooter Forum. This is a true “home-built” rifle. Les machined the action himself (receiver AND bolt), chambered the barrel, and crafted the stock from a blank. You’ll find complete build details (with machining photos) in this Forum Thread.

Why did Les build this unique rifle? He tells us: “I just thought it would make a nice little rifle cartridge with light bullets and subsonic with heavier ones. D.J. Jones had something similar as the ‘Mini Whisper’.”

Les designed and built the action and bolt to fit the tiny 7.62×25 Tokarev cartridge. He told us: “Once upon a time I got this idea to make a bolt action with front locking lugs, full diameter bolt, Remington trigger. It took me years to get it all figured out and make all the tooling, then it took about six months to build the gun”. The rifle features a 1:10″-twist Adams & Bennett barrel that Les chambered himself.

rifle tokarev 7.62x25 pistol cartridge varmint rifle custom

Les designed and crafted the receiver and bolt assembly himself. The bolt features an extractor but not an ejector — the empty case stays on the end of the bolt. The extractor slot cuts through one lug, but Les says it still has 10 times the required strength.

rifle tokarev 7.62x25 pistol cartridge varmint rifle custom

Details of Action Design and Machining
Les explained: “The action started as a piece of 4160 bar stock. I drilled and reamed all the holes in my 12×36 Craftsman lathe. Cutting the slot inside for the locking lugs to pass through was the most difficult part. There were no blueprints for this and just a couple of sketches to get the slots right for the bolt handle slot and extraction cams. Everything is design on the fly. I used a grade 8 bolt for the bolt which did not require any hardening, they’re pretty hard already. Although I did make several receivers before I got it figured out, I only made one bolt.”

Surprisingly, Les is not a machinist by trade. He is just a very smart guy who learned by doing: “I’ve never had any machinist training. I mostly learned by trying different things until I found what works.”

NOTE: Under Federal law, it is legal to build an action or complete rifle for personal use (not for resale). Refer to ATF Regulations.

rifle tokarev 7.62x25 pistol cartridge varmint rifle custom

As you might expect, this cartridge is naturally pretty quiet. Les says it “makes less noise than a .17 HMR”. Recoil is also minimal. In a 9-lb rifle (with scope), shooting free recoil, the rifle moves only about three inches. Considering this is a tiny pistol cartridge, the accuracy is pretty good, as you can see:

rifle tokarev 7.62x25 pistol cartridge varmint rifle custom

Loading for the 7.62×25 Tokarev in a Rifle

rifle tokarev 7.62x25 pistol cartridge varmint rifle customThe cartridge brass comes from Sellier & Bellot pistol ammo. Les currently loads with AA #7 and AA #9 powders, but he may try some others. His favorite load so far has Hornady 168gr A-Max bullets pushed by AA #9 powder and CCI 400 primers. This produced a 0.437″ group at 50 yards.

How does Les like the cartridge? He says: “I wish the 7.62×25 had a longer neck. At 0.140″ it’s pretty short. I think a longer neck would help getting things lined up better.” He notes that boat-tail bullets seem to load easier than flat-base projectiles.

Ammo is loaded with inexpensive Lee dies: “I’m using Lee dies and they seem to work OK. I’d like a better seater die and I may modify this one.”

rifle tokarev 7.62x25 pistol cartridge varmint rifle custom

Les reports: “The 168gr Berger moly LTB didn’t do as well as the 168gr A-Max so I started working with the A-Max. I’m loaded really long and the Tokarev evidently has a pretty long freebore but I managed to get it into the lands. The target photo above is the best this gun has ever shot. I’ve gotten mostly two-inch groups at 50 yards (my max home range distance). Recently I made some progress. My best group was a little less than 1/2 inch at 50 yards.”

Special Features of the Stock

rifle tokarev 7.62x25 pistol cartridge varmint rifle custom

Les built the stock himself from a laminated blank. For this project, Les added some interesting features to the stock. He created his own adjustable cheekpiece using all home-crafted hardware.

rifle tokarev 7.62x25 pistol cartridge varmint rifle custom

Les also fitted a barrel tension adjustment system in the stock to help tune the barrel harmonics. There is a hex-head machine screw in the bottom of the stock for adjusting the upward tension on the barrel.

rifle tokarev 7.62x25 pistol cartridge varmint rifle custom

Les crafted this stock with a thumbhole pattern with finger grooves. He has used this design on other stocks he has built as he likes the look and “feel”.

rifle tokarev 7.62x25 pistol cartridge varmint rifle custom

Permalink Bullets, Brass, Ammo, Gunsmithing, Reloading 1 Comment »
February 21st, 2020

Gunsmithing Gone Bad — How NOT to Headspace a Barrel

Locktite Red barrel shoulder headspace Thomas Speedy Gonzales
This barrel’s shoulder was 0.025″ off the action because Red Locktite had been used on the threads.

Gunsmith Thomas ‘Speedy’ Gonzales offered this interesting report about how NOT to headspace a barrel. Hopefully you never discover something like this…

“A good friend and customer sent this rig in for repair after FedEx damaged the rifle during inbound transport from another smith. After repairing the stock and rebedding it, I decided to re-polish the barrel to make the repair perfect. Well this just added insult to injury as the barrel did not want to come off. After a few choice words, the barrel finally broke free only to reveal something very disturbing. It seems the barrel had been ‘headspaced’ by using RED Loctite to hold it in place.” [Editor: That’s definitely NOT how barrels should be fitted.]

Speedy was not happy: “I hope the smith that did this sees the photos and realized what jeopardy he put my customer in or anyone who shot the rifle for that matter. When cleaned up, the shoulder on the barrel was over 0.0250″ (25 thousandths) away from the face of the receiver.” [Editor: That’s a lot in this business]. Check out the images below to see how much the barrel rotated further inward when cleaned up. The barrel spun in nearly another eighth-turn or more. Not good.

Locktite Red barrel shoulder headspace Thomas Speedy Gonzales

Locktite Red barrel shoulder headspace Thomas Speedy Gonzales

Permalink - Articles, Gunsmithing, Tech Tip 3 Comments »
February 27th, 2019

Krieger Barrels Now Offers Pre-Fit Savage Barrels

John Krieger Barrels cut-rifled Savage Prefit Pre-fit chambered rifle barrels pre-chambered

Krieger Barrels has some great news for Savage rifle owners. This fine cut-rifled barrel-maker, a long-term sponsor of AccurateShooter.com, now offers Pre-Fit (pre-chambered) rifle barrels for Savage actions. With a Krieger pre-chambered barrel, you save time and money — you don’t have to pay a gunsmith hundreds to cut the chamber, and wait weeks (or sometimes months). With the proper GO/NO-GO gauges and barrel nut wrench, most rifle-owners can install their own pre-fit barrel.

SAVAGE PRE-FITS NOW AVAILABLE
Choose from multiple calibers/chamberings and custom contours for large- and small-shank Savage actions. Call Krieger Barrels at (262) 628-8558 to start your order.

On February 26, Krieger announced: “We are happy to announce that we are now taking orders for Pre-Fit Savage barrels for their centerfire bolt action receivers! Many standard cartridges available for both large shank (1-1/8″) and small shank (1-1/6″) actions. You can order our standard contours or come up with a custom contour to fit your needs. Every detail is addressed to make these Pre-Fit Savage barrels the best they can be for your application.”

Pre-Fit Savage barrels start at $515.00 + S&H. Call today to discuss your needs and get a barrel order going! For more information visit KriegerBarrels.com or call Krieger at (262) 628-8558.

John Krieger Barrels cut-rifled Savage Prefit Pre-fit chambered rifle barrels pre-chambered
Company founder John Krieger hard at work at the Krieger Barrels production facility.

Permalink Gunsmithing, New Product, News 2 Comments »