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What .22 cal center fire for SM ring mauser

bbiggs
I have a Samco small ring mauser in .308 winchester.

Also have a 22-250 Remington 700 SS barrel. Have been told the action is not strong enough for 22-250

This article seems to refute that

http://masterton.us/Gammo

What is the pressure of commercial 22-250 ammunition.

My Speer #10 manual limits loads to 53,000. Is this safe in a small ring with remington ss barrel rethreaded and headspaced?

I am a machinist and this will be my first attempt

Should I rechamber the 22-250 barrel?

How is the mauser bolt face converted to 223 (.378) Feed issues?
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Comments

6 comments

Date Votes
  • rwfixem
    The problem with the mausers is that they can be tough to get to feed the 22-250, 250 savage cases. This is due to case body dimensions(length/diameter). I have been looking at the 225 Win.

    The 223 Rem case head is to small. could be converted to this size but feeding is the problem. All of this is do-able IF you have know-how and tools to do yourself. If not it will be cost prohibitive.
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  • Mobuck
    I would vote against the small ring in 22-250. As mentioned, feeding might be difficult. Does your mag box have the filler in it to shorten for the 7.62x51? An expensive but possibly safer option would be to chamber your barrel for a wildcat like the 22/243(22/308) or 22/6mm Rem (22/257 Roberts). All your ammo would be handloaded so you could keep pressures at a safe level. The 6mm Rem and 257 Roberts are the same basic case as the original 7x57 chambering of this type Mauser.
    I would caution against using commercial .308 Win ammo in these rifles. I've had 3 or 4 of these, one of which displayed excessive headspace requiring special loading procedures to safely fire it. All the ammo I shoot through these is limited to 45000 cup.
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  • MIKE WISKEY
    "Samco small ring mauser".........samco is the importer, the big question is who made the action? In DeHass's book on bolt actions he states something to the effect that only the swedish mausers should be considered for high pressure cartidges. I've personaly built .22/250's on swedish m-38 actions, but this is THE only small ring action I'd consider doing that to.
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  • nononsense
    bbiggs,

    Welcome to the Gunbroker Forums!

    Here is a list of cartridges with SAAMI spec and CIP spec pressure. Be sure to understand the difference between 'Piezo' and 'Crusher'.

    http://kwk.us/pressures.html

    First of all, there is no generic rule that can be safely applied to using the M1916 for any cartridges other than the original. The basis for this determination will come from a qualified gunsmith who will do a thorough examination of the rifle to see if it is in the condition to support the pressures you desire to use. The condition of these actions will run the gamut of terrific to horrible. Properly built, the Mauser will work with the .22-250 pressure-wise. To be absolutely sure, have it examined and send it out for heat treat if there is a concern.

    Honestly, just because these are cheap does not make them an ideal candidate for any project folks can dream up. Too many people get confused by the cheap availability of some Mausers and want to have a modern high pressure cartridge for it thinking it will be less expensive than buying a modern rifle at today's prices.

    Modifying the M1916 to function and feed the .22-250 will cost you more than you should spend. Understand that I am a big proponent of Mausers in all forms but you need to exercise some judgment also. If it's cheap you're looking for try a Stevens. If it's a Mauser, go to CDNN and look at some of the Remington M798 rifles they have for sale.

    Best.
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  • bbiggs
    I have actually tried 22-250's in the magazine and they feed ok. This was already converted to 308.

    I am not familiar with the 22-308, thought that is what a 22-250 was

    As far as the heat treat, what treat and drawback temperatures or rockwell should I ask the heat treaters to shoot for? We have a heattreating firm we do business with, and I have a wilson-rockwell hardness tester

    One of my actions is color case hardened. What rockwell should I look for?

    This is a little far afield, but has anyone turned a ring to slip around the reciever and tig weld or is the issue more with the just 2 locking lugs?

    Thanks,
    Bill
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  • MIKE WISKEY
    "This is a little far afield, but has anyone turned a ring to slip around the reciever and tig weld or is the issue more with the just 2 locking lugs?"..........we are getting back to who made the action, the Swedes used the best steel avaiable. the ring size isn't importent here, the quality of the steel is. the 'strenght' of the small ring actions is almost the same as the 'large' ring m-98's but the m-98's have a third 'safty lug' that will keep the bolt out of your face if everthing else fails. all pre ww2 mausers were 'pack hardened', a deep case hardning on the inside wortking surfaces, and are fairly soft on the outside. it is impossible to properly test one for harness without destroying the action.
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