My 9.3x64mm Mauser project

ErikT

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Having seen previous "in progress" posts by others on this forum (I especially liked Ardent's double rifle!), I decided to do a photo journal of one of my own projects from start to finish, on the chance that others might enjoy seeing it progress. I started with a very poor example of a wartime Mauser, which had been scrubbed of every meaningful marking. Not a single part matched, the stock was split and repaired by bubba several times before being soaked in what appeared to be motor oil, and the barrel, which once was chambered in 8mm Mauser, had a bore and chamber that was so pitted and devoid of rifling that it couldn't hit the broad side of a barn from INSIDE the barn. This beast was in serious need of an overhaul, and it was a decision to try to restore it to its former military glory, or to make a truly custom rifle for myself. I decided that having a mauser that couldn't shoot didn't make sense (I actually found the thought offensive), and neither did rebarreling an old warhorse with another military barrel. I went the custom route.

This is the basic action, before being completely disassembled:

Rawaction1.jpg


Here are most of the raw parts before beginning the project. I obtained the FN bolt shroud, the commercial follower, the allen-head action bolts, and the Timney trigger from Western Gun Parts. The bottom metal was ordered from Del Selins right here on CGN, and I ordered a laminated stock from Richards Microfit. The Barrel is a 26" Heym hammer-forged chromoly from Bits of Pieces in BC. It came pre-threaded and short-chambered in 9.3x64mm Brenneke.

Parts1.jpg


I started out by obtaining a Parker-Hale Mauser bolt and fitting it to the action. Here I am filing the bolt handle recess:

Bolthandle3.jpg


And the bolt fitted:

Bolthandle1.jpg


I next attacked the charging hump on the receiver bridge. Here it is before:

Bridge1.jpg


And after hitting it with the file:

Bridge5.jpg


Then some rough polishing to finish it up:

Bridge8.jpg


Next, I decided to do some minor custom touches, and I decided to modify the bolt release. I filed and checkered a thumb-piece:

Boltrelease10.jpg


Then I soldered it to the bolt release:

Boltrelease15.jpg


And all cleaned up and polished:

Boltrelease18.jpg


Back on the action:

Boltrelease20.jpg


This work took me several months to accomplish, and I had a fair bit more work to take it to the finish line, and the range. I'll post more photos and descriptions later, as I get time. I hear my little ones calling me. Cheers!

Erik.
 
Nice work on the bolt release!:)

Who made that bottom metal you got from Del Selin?:confused:

I'd like to get one like that for a Yugo M48 Mauser.

Not to criticize, but I cringed when I saw you filed the charger guide hump. One thing I love about Mausers is they can be wonderful open-sighted Safari guns with the ability to reload with stripper clips (so long as you use an appropriate cartridge.)

BTW, unless you are sold on the 9.3x64mm Brenneke, the 9.3x62mm Mauser has much better selection of factory cartridges, and is pretty inexpensive if you are happy with Prvi Partizan.

http://www.midwayusa.com/viewProduct/?productNumber=366534


I'll stop nagging you now.:D
 
Wow looking good!

I am about to embark on a very similar project! Your thread has already proved to be very helpful. Keep up the posts!

Steve
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Okay, here’s some more. I decided that I really liked the tang safety on my Savage, and I did a little digging on the net. I found an obscure safety conversion that was done by Canjar decades ago, and I liked the look of it. Deciding that I liked the challenge, I went ahead and began building a custom safety to retrofit the Timney trigger I set aside for the project. I started with a blank piece of steel:

Boltrelease3.jpg


Then I planned out the design and began to file, drill, and grind:

Safety1.jpg


Lots of filing (I have no milling machine, poor me):

Safety3.jpg


Here is the roughed-out tang unit:

Safety4.jpg


And preparing to fit it to the stock:
Safety8.jpg


Here is the safety button fitted to the base:

Safety5.jpg


I started roughing out the inlet channel for the safety base by slicing away with some nice sharp chisels until I was within 1/16 inches of my final depth and width. Then the fun began:

Safety10.jpg


My wife had no lipstick ends for me to use for inletting, so I made do with an oil lamp to spot the base for the impressions:

Safety11.jpg


Here I am, about ¾ done the inletting. You can clearly see the sooty impressions:

Safety13.jpg


And pretty much finished the inletting. I still had to do some final shaping to blend the entire unit in with the grip and the action, as well as modify the safety plate on the trigger itself and construct a transfer bar to connect the trigger safety with the new safety button. Then the fiddly work to get it functioning properly. Here is the full inletting, with the channel cut for the transfer bar:

DSCF0089.jpg


After finishing up with the safety mechanism, and ensuring that everything was working satisfactorily, I took the whole rig in to my gunsmith, Roy Gruninger in Warburg, Alberta, who drilled and tapped the action for Weaver bases and installed and headspaced the barrel for me. I’ll post more when I get more of my photos uploaded, because I had a heck of a lot of work to do after getting the rifle back from the smith.
 
Nice - and thanks for sharing!

Please stick with the 9.3x64. The 9.3x62 is as common as dirt, and not near as powerful as its big-brother. You'll want to use handloads anyways.
 
Question for you...

Did you have any trouble getting your stock up here?

I am looking at Richard's as well but the stock I am looking at is over $100.00.

I have emailed them to see if they have been having any issues getting their stuff up here but thought I'd ask you anyhow.

Thanks,

Steve
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9.3x64-Your build,Erik

X2 on the 9.3x64---I have 9.3x57---9.3x62---and a SUPERB original Wilhelm Brenneke KG Berlin 9.3x64 with a Kahles 1.5-6 in claw mounts.Ah,3 in 1 hole with 270 gr Speer/Norma 204 brings joy to an old man!---also have a 375H&H---like my 9.3 Brenneke better BTW you have talent Erik! CHEERS! bent barrel
 
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I am not sure what extractor you have on that Parker Hale bolt. If you have a Magnum bolt face you may find that you need to change over to the 8x57 extractor and fit it to the Brennenke groove. The brenneke groove is deeper and the rim smaller than standard belted magnums but bigger than 8x57.
 
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Thanks for all the responses, guys! I have been very busy with the build, so here are some more photos of some stock work. First is the inletting of the bottom metal, purchased from DelSelins here on CGN:

Guard2.jpg


Inletted to full depth:

Guard4.jpg


And the relief cut for the hinge mechanism:

Guard1.jpg


The finished inletting with fully-functioning hinged floorplate! Unfortunately, I neglected to ask Richards Microfit to inlet the stock for commercial bottom metal instead of military metal, so you can see a small gap ahead of the front action screw hole. Time to tint some acraglas and sand it flush. Not the best fix, but she’s a working rifle, so I’m not going for the very best in looks with this build.

Guard5.jpg


With the bottom metal finished, I decided to lighten the stock a bit with a channel in the forend:

DSCF0084.jpg


Finishing up with a chisel:

DSCF0085.jpg


And the finished barrel channel. I also drilled a couple of lightening holes in the butt, and cut finger grooves along the top of the forend, which I’ve found to help a lot in cold weather when wearing gloves. The total weight saving was around 9 ounces. Not bad, especially for a laminated stock. It feels MUCH lighter and easier to point.

DSCF0090.jpg


While waiting for the action work to be finished at the gunsmith, I decided to make up some cartridges, since brass is extremely difficult (and expensive) to come by. After some careful measuring, I found that by removing the belt from .338 Win Mag brass, then cutting a new extractor groove and rim, the measurements were nearly identical to 9.3 x 64mm cases. Here is my mini-lathe removing the belt:

Cartridge2.jpg


Cartridge3.jpg


Then the rim is cut down:

Cartridge7.jpg


And finally, I cut the extractor groove deeper:

Cartridge6.jpg


Here is a finished cartridge:

Cartridge5.jpg


I still have to lube it up good and run it through the full-length sizing die to final form it, but it’s nearly done here. Takes a fair bit of time, but it’s better than paying several dollars per round and waiting 6 months to have them shipped up here. I’ll post some photos of finished rounds when I get them uploaded. After a good polishing in my tumbler, the brass looks like it was made in the factory, except for the headstamp. So far, it’s been a pretty fun project. I’ll post further photos when I get things finished up. Cheers!

Erik.
 
EricT: Interesting project and very nice file work. You may want to re-visit the bolt release and file a small bevel around the perimeter of your checkering. The edges and corners look pretty sharp and are sure to eventually cut/gouge your hand and/or cut holes through gun cases etc. Is the bottom metal cast steel or an alloy? Looking forward to seeing the completed project.
 
ErikT, your work inspired me to go ahead and file down the rear ring on my Stiga 9.3x62 to clear a peep sight. I'm just going to polish it up a bit and cold blue it for now. Eventually I'll send the gun out to be blued or I might paint it with Dura-cote or something similar.
Cheers, MM
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1c.jpg

1b.jpg

Stiga.jpg

Stiga2.jpg

Stiga93x62.jpg
 
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Awesome work, Moosemasher! Where is the peep sight from? I was thinking of putting one on mine, but the 9.3 x 64 is powerful enough to take a moose or elk past 300 metres, so I figured a scope would be best to get the most use out of the cartridge. Maybe I'll do another custom Mauser after this one with peep sights.

Erik.
 
This one of the best threads ever!
I too, at some point, would love to do a mauser re-build.

By the way, a tang saftey on a Mauser - fantastic!
 
The sight is an XS M98 that I got from Brownell's. It was $60. The only way it would fit was to file off the charging ramp. I wasn't sure what to do, then I saw your thread yesterday and figured "I'm goin' for it". Thanks for sharing your project!
 
thanks

I have to agree that this has to be one of my favorite threads . I have always liked my rifles with Mauser actions and have always wanted to see some custom examples. Thanks EricT the project and pics are great I cant's wait to see more.
 
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