New Mauser project complete...ish

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LoonWulf

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Got this rifle from my buddy.
It appears to be a 1910 Mexican Mauser, basically a small ring 98.... @troy fairweather helped me figure out what I was messing with since I'm not a Mauser guy.

Originally sporterized some time back in its history. Standard treatment for the most part.
bent bolt handle, scope mount, and high gloss sporter stock....all of which were done pretty well.

Where it diverges....
Both the crest and striper slots were ground away and It had a replacement barrel in .243 (which as we know is a fantastic cartridge and one of my least favorites).
The first stage of the trigger was taken completely out, and sear engagement was reduced to give it a reasonably creepy single-stage pull of about 4lbs.
For some reason, the firing pin was also replaced with a standard 98 firing pin which is noticeably too long.

Some original pictures.

Cute front sight ive never seen before.

20220114_183715.jpg


Ground bridges
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Premium quality scope mount!
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The grinding job was pretty good, theres a slight divot just right of the....upside down scope mount holes, but otherwise its hard to tell its been altered.
20220114_205156.jpg

The complete rifle as I received it.
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98 pin, correct pin
20220203_161308.jpg


So with this as a base I started to tinker.
Replaced the firing pin with the correct one, and added a new spring to it.
Changed the barrel to .257 Roberts, because its cool.....and i found a barrel on ebay so didnt have to wait for one......
Refinished the stock with BLO, and installed a Limbsavers recoil pad to get rid of the rounded edges on the back of the stock, and to add some much needed length. (not pictured)
Bedded the action, and bottom metal, I made epoxy pillars as well as set the bottom metal flush with the stock.
I also installed a two-position right side safety, and will be replacing the trigger with a timney drop in here in the near future.
Barrel is also in the white with a coat of cold blue, so in the near future one of my coworkers is going to come over and learn how to blast and Duracoat on this one.


Rando pics
20220205_002437.jpg IMG_20220206_210457_639.jpg


Completed rifle.
20220209_170827.jpg




With all the major work completed, and the hunt for reloading stuff over (ok it was as easy as asking @Bandit67 if he had what i needed lol), it was time to load up some rounds and go turn money into noise.
Last week I was at the range to sight some other rifles, and I took a pressure load ladder of RL-17 under 115gr Nosler Ballistic tips. Charges ran from 43-45...but being the genius that I am, I didnt label the individual rounds and mixed up the ammo carriers with my minimum and maximum charges.
That left me with just the 44gr charges to try, and those ran about 3050, and had a fairly large ES.
Group for the few I did send at the target (only had 5) was in the 2" range.

With that info in hand, I decided to back down another .5gr (pressure looked ok, but higher than I liked) and load up 20 or so just to see how well the gun would shoot with that arbitrary charge weight.

Fast forward a week or so, and dad wants to do a long range day. Thus I took the Mauser with me.
I forgot the Magneto speed today, so I dont have velocity data (but ive got some extrapolations, and im expecting about 3000-3020ish).

My first few shots were clean off the board. Id forgotten Id shimmed my scope over to the left and was not bore-sighted before taking those first couple shots. It took a few tries to get back on target and sighted, but I got it where I wanted and shot this group at about 200yds (The near bullseye in the black dot is from my S20 7 mag. Unfortunately, I was aiming at a dot about a foot above that black one).
20220218_173158.jpg


From there my Dad and I both made hits on the 10" and 4" plates at 400yds or so, and I made a couple on the 10" at 700....I also forgot the spotting scope and tripod, so no pictures or videos of that.

Im hoping to finalize some of the minor issues, and have this gun 100% complete in the next week or two....Its already shooting fantastically, and it's a real pleasure to operate.
 
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It's coming along nicely, that group at a 100 id be happy with, considering not a tuned load yet it's shooting nice. 3000 with a 115 will be a killing machine, and should be perfect for the rams and goats you have. 8.5 pounds for a scoped mauser is doing pretty good, that high comb is probably a few oz's lol. I'm still chuckling about the high quality tasco base line lol, it's working tho.
 
Thanks for the compliments guys!




Nice work and good shooting! I'm always happy to see an old rifle like this in the hands of a sympathetic new owner.

I can't tell -- did you insert plug screws in the receiver sight holes on the right side of the receiver? Not necessary, but I think they make the rifle look more finished.

View attachment 1060838

I hadnt even considered it yet....thats a good idea!
I dont have any plugs in my stash of small threaded things, but i have old 6-40 and 6-48 screws.
I could lop the heads off a couple, slot them and run them thru from the other side.
loctite them inplace, and blend them into the side of the receiver before duracoating.

Or i could just order plugs....

Now that you mention it i need a set for my 700 anyway.
 
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A 115 at 3050 is a whole lot of Roberts, .25-06 ballistics.
Yeah, its pretty spiffy...little hotter than i wanted tho. Primers were flat to the edges tho unmushroomed, but no other signs. Which is what prompted the drop in charge weight.

From drops im guessing velocity is sitting in the +3000 range.



This is where the .250AI with its 26" tube used to run 117 bergers, ive been quite happy with the performance of those, so may try them after i run out of balistic tips.
I may also lengthen the throat to make better use of the mag.

Oh of note, some of the brass i got was primed, and thats what i used for my pressure ladder. Those old primers may be why the velocity spreads were so wide with thr first batch of ammo. The ammo for this weekend was made from mostly newly primed brass, only the pulls from last week were the old primers.
 
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I won’t throw out any compliments to someone with irrational fears about the beloved .243 particularly if such a man removes said barrel for a Bob. I’d not compliment that stock finish or the fine accuracy which would doubtless be double with the original tube.

Yep, zero compliments to be had on this one, despite how good it looks, likely due to photoshop spiffing up that hot rod barrel. :neener:
 
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