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Thread: 358 Win Mauser? Need help to I.D.

  1. #21
    Boolit Master
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    Quote Originally Posted by NyFirefighter357 View Post
    I don't know it doesn't match the serial * on the receiver.

    The "1925" number is NOT a serial number or year of production, but rather what was referred to as an "assembly number". In a nutshell, the rifles were fitted with all their parts during initial assembly...final fitting and any bugs worked out...then, the major parts were given the assembly numbers. Then the rifle was disassembled...and the parts sent off for final finishing. The assembly numbers, as you can imagine, were used so that the correct parts could be put back together, to make the finished rifle.

    Over the years of use and periodic refurbishing in military service, it was not uncommon for certain parts to be mixed up, hence mis-matching floor plates, etc. All matching numbers are important for collector purposes, but not for function, as long as the bolt assembly and the receiver match ( that is best, as they were fine-tuned together at the factory...but that doesn't mean that a mis-matched bolt/ receiver won't work...only that matching bits will be smoother together).

  2. #22
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    Looks a bit like the barrel could benefit from lapping (it appears to be a bit rough). This is a step often omitted in this day and age. Perhaps further cleanup will eliminate the roughness. The REAL test, though, is shooting it. Even if the bore is a bit rough, it may shoot well. Perhaps very well (I have seen that with several rifles). The downside to a rough bore, that still shoots well, is that it may foul much more quickly and be more difficult to clean up. Time and use will tell...

  3. #23
    Boolit Master

    Uncle Grinch's Avatar
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    Looks like you’re good to go.
    Shoot Safe,
    Mike

    Retired Telephone Man
    NRA Endowment Member
    Marion Road Gun Club
    ( www.marionroad.com )

  4. #24
    Boolit Buddy wolfwing's Avatar
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    12 is a very fast 35 cal twist. Usually they are 14 or 16.

  5. #25
    Boolit Master
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    I cleaned the fouling with Bore Tech Chameleon which also has a "micro" polish. https://www.boretech.com/products/btck-40002

  6. #26
    Boolit Master
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    .358 Winchester specs are: Rifling twist 1-12

  7. #27
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    Larry Gibson's Avatar
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    Quote Originally Posted by NyFirefighter357 View Post
    .358 Winchester specs are: Rifling twist 1-12
    Because Winchester "spec'd" it for their barrels does not mean 12" is an optimum twist for cast bullets. A 14 0r 16" twist would be better for top end velocity with accuracy using cast bullet loads.

    However, that being said, I wouldn't turn down that rifle because of the 12" twist should you decide to "gift" it to me......

    Merry Christmas to you and yours
    Larry Gibson

    “Deficient observation is merely a form of ignorance and responsible for the many morbid notions and foolish ideas prevailing.”
    ― Nikola Tesla

  8. #28
    Boolit Master
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    Quote Originally Posted by Larry Gibson View Post
    Because Winchester "spec'd" it for their barrels does not mean 12" is an optimum twist for cast bullets. A 14 0r 16" twist would be better for top end velocity with accuracy using cast bullet loads
    I agree Larry, I'll make due with it though. Now to work up some loads.

  9. #29
    Boolit Buddy wolfwing's Avatar
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    Quote Originally Posted by NyFirefighter357 View Post
    .358 Winchester specs are: Rifling twist 1-12
    Learn something everyday. I recently ordered a 35 cal barrel and my choices were 14 or 16 for .358 (16, 18.75 and 20 for .357 groove). Winchester was ahead of the curve on this one!

  10. #30
    Boolit Grand Master pietro's Avatar
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    .

    Your rifle appears to have been stocked with a very popular (when it was sporterized) Bishop stock.
    Now I lay me down to sleep
    A gun beside me is what I keep
    If I awake, and you're inside
    The coroner's van is your next ride

  11. #31
    Boolit Master
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    Quote Originally Posted by pietro View Post
    .

    Your rifle appears to have been stocked with a very popular (when it was sporterized) Bishop stock.
    That's nice to know, it also has a Bold trigger #613 as I found when I removed the stock.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check