All the Mauser talk here lately motivated Me to dig out a project that got side tracked a couple of years ago. This is my 3rd Mauser project which in no way makes me an expert on the subject, but I have picked up a few things along the way.
I had already blueprinted the receiver before the project got shelved. It's a 1937 Czechoslovakian VZ-24 (large ring Mauser)
This tool is somewhat similar to the one above. But this tool is spring loaded to apply pressure on the bolt for polishing the 3 locking lugs. You simply apply valve grinding compound to the lugs and work the bolt for awhile.
I'm going to pillar bed the receiver and free float the barrel.
You can see that the rear mounting hole comes slightly elongated to accommodate variations in receivers. The receiver needs a solid lock up there for best accuracy. Here's how to do it. The pillar also solidly locks the receiver to the TG. First you need to drill out that hole large enough to fit the pillar and the bedding compound. Then accurately cut the pillar to the correct length. I also opened up the area around the front receiver lug to allow for the bedding material.
This pic shows the notch that must be cut in the TG to accept a trigger mounted safety.
You need to tape up the stock and apply the release formula to anything that you do not want the bedding compound to stick to.
In the 3rd pick you can see where I plugged the holes where I do want it to stick with silicone plugs before applying the release compound.
Left) Original Mauser firing pin, spring, bolt shroud with the military 3 position safety and cocking piece.
Right) Assembled unit with titanium FP, extra power spring and sporter style bolt shroud with no safety mechanism (which I moved to the trigger)
The FP/spring change makes a huge difference in the lock time on a mauser. The factory FP on these things is freakin heavy. Lock time is cut by over a third by going to the light weight pin and heavier spring.
This will give you an idea how big and heavy the Mauser firing pins are. Pin hell, these ought to be called firing rods. LOL
The titanium FPs cut the mass by over 50%
Finished and ready for test firing.
Summery of this build
Starting out with a well used 1937 Czechoslovakian VZ-24 (Large ring Mauser)
I blueprinted the bolt and receiver and mated it to a Numrich trapdoor trigger guard assembly. Then I inlet it and pillar bedded it into a Boyd's laminate stock.
I re-chambered it to .308 Win. using a 22" Shilen #5 contour barrel with a 1 in 10 twist. I cut off the straight bolt handle and fabricated one of my own, which Zap welded on for Me
I drilled, tapped and installed a one piece scope rail, then assembled it using a Bold Optimal trigger, a Titanium firing pin with a speedlock spring and a sporter bolt shroud.
I finished it off by adding a grip cap, recoil pad and swivels to the stock. Topping it off is a Simmons 4-12X44 scope and a Harris bi-pod. I fully expect this rifle to shoot MOA.
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