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Thread: 1952 Corona 98 mauser hardness

  1. #1
    Boolit Master
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    1952 Corona 98 mauser hardness

    I recently ground the clip slot off and drilled and tapped a Spanish 98 Mauser marked corona, 1952. This was by far the hardest receiver I ever worked on. The back bridge was as hard or harder than the receiver ring. It dulled bits and broke taps and wore the teeth down in the taps. I ran a propane torch in the holes to anneal it, but didn't help much. Has anybody else worked on one of these and was it this hard?

  2. #2
    Boolit Master

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    I worked on one about 15 years ago---can't recall anything unusual.

  3. #3
    Boolit Master Texas by God's Avatar
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    Does the La Corona have an EA prefix to the serial number?
    The hardest I've d&t'd was a Type 38 Arisaka and a Russian SKS.

    Sent from my SAMSUNG-SM-G930A using Tapatalk

  4. #4
    Boolit Master
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    It looks like it says cal 7.92. Is that the Nato designation for the 30-06?

  5. #5
    Boolit Master Texas by God's Avatar
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    Quote Originally Posted by flounderman View Post
    It looks like it says cal 7.92. Is that the Nato designation for the 30-06?
    No, 7.92 is the 8mm Mauser. It may be a smudged 7.62 mark; meaning it is converted to 7.62 Nato. Should be easy to check.

    Sent from my SAMSUNG-SM-G930A using Tapatalk

  6. #6
    Boolit Master
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    receiver has had a lot of polishing and the markings are hard to read. I wouldn't think Spain would be using an 8mm in 1952. I just have the action, so the caliber is not important. It is going to be a 22-250 when I find a reamer. I was thinking the 30-06 was a Nato caliber for a while. There was some 30-06 mausers available a long time ago, as I remember

  7. #7
    Boolit Master
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    I have a coruna model 98 mauser and it is 7.92 or as we call it 8mm and it is 1948 or 1949 date , Good rifle and in great shape . Paid very little as people think if it is a mauser and its spanish it is not as good , nothing wrong with it at all and it stays in its original condition .

  8. #8
    Boolit Bub Doug Humbarger's Avatar
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    Oct 2010
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    Louisiana
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    Were you useing carbon or high speed tooling.
    HSS tooling is the only was to go.

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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