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Thread: 280 Ross

  1. 09-28-2019, 06:02 PM #1
    uhjohnson
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    280 Ross

    I have 60 rounds of Kynoch
    Ross 280 ammo, i do not know how old it is and don't know when it will be shot. Should I tear it down, anneal the brass and save the powder or use new powder when I get dies to reassemble
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    Last edited by uhjohnson; 09-28-2019 at 07:55 PM.
    Member of Berwyn Rod and Gun Club since 1983, it is an outdoor range located in Bowie Maryland, if interested in joining call 301-261-7515 or 301-464-9830

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  2. 09-28-2019, 06:45 PM #2
    cwtebay
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    What's the headstamp on the brass?

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  3. 09-28-2019, 07:05 PM #3
    maxreloader
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    Quote Originally Posted by cwtebay View Post
    What's the headstamp on the brass?

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    OP states "Kynoch" so the headstamp would be Kynoch.
    Looking for Ideal mold 419181 (44 Evans Long)
    "Joined Dates" are deceiving if you factor-in "lurk" dates.
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  4. 09-28-2019, 07:11 PM #4
    uhjohnson
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    The head reads KYNOCH on top and .280 on the bottom
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    Last edited by uhjohnson; 09-28-2019 at 07:47 PM.
    Member of Berwyn Rod and Gun Club since 1983, it is an outdoor range located in Bowie Maryland, if interested in joining call 301-261-7515 or 301-464-9830

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  5. 09-28-2019, 07:23 PM #5
    cwtebay
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    Safest way would be to tear it down. The reason I asked for the headstamp is for evidence of reloading. You're out a few bucks to tear it down - no telling the cost if it's an unknown.

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  6. 09-28-2019, 11:42 PM #6
    samari46
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    Might be berdan primed and corrosive primer. Sacrifice one to find out before going any further. Since you don't have the original boxes or lot numbers might be the prudent thing to do. Frank
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  7. 09-29-2019, 09:31 AM #7
    Huvius
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    Pull one down and see what weight the boolit is.
    The first loading was 140gr iirc and then they went to a 160gr projectile.
    Your boolits look like they could be 140s with the blunt semi hollowpoint nose. Those are the boolits that performed so poorly and got a few sportsmen et when they took their 280s out after lion and such.
    I have an Oberndorf Mauser that will only hold the 140gr factory cartridges but not the 160s.
    Also, I have had weird results with the three 280 Mausers I have had.
    One Lancaster shot the Ross Seyfreid loads perfectly but a Gibbs showed WAY over pressure and the other one I mentioned above shows over pressure but not as bad as the Gibbs did. I'm beginning to work up new loads for that rifle but its back burnered for now.
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  8. 09-29-2019, 08:15 PM #8
    CrystalShip
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    All Kynoch headstamp 280 Ross Rimless were made with 140 Gn bullet
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  9. 09-29-2019, 10:12 PM #9
    john.k
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    Measure the primers ,if .250 its berdan,but if normal .210,then thats valuable cases,and worth looking after.
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  10. 09-30-2019, 12:52 PM #10
    cwtebay
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    Quote Originally Posted by john.k View Post
    Measure the primers ,if .250 its berdan,but if normal .210,then thats valuable cases,and worth looking after.
    Now that is a great tip!

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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