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Type: Posts; User: G.O. West

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  1. Replies
    65
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    9,181

    322789 Fireforming the 303 British case...

    322789

    Fireforming the 303 British case results in a 1/8" longer case than mechanically expanding it. A previously fired case needs to be annealed to avoid split necks. You often need to remove...
  2. Thread: 348

    by G.O. West
    Replies
    5
    Views
    758

    Remember that the .348 has an extremely shallow...

    Remember that the .348 has an extremely shallow throat. Make sure your crimping grove is far enough forward so that the slug doesn't jam into the lands of the rifling when chambering the cartridge.
  3. Replies
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    1,473

    If you want to resize it to factory specs buy the...

    If you want to resize it to factory specs buy the proper dies from CH4D.

    https://www.ch4d.com/products/dies/caliber-list?filter-col=caliber&filter=410
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    17
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    5,161

    It may well be. I would suggest trying a thin...

    It may well be. I would suggest trying a thin plastic wrap around inside the case to encircle the shot before you pour the shot in. That would be a simple experiment to see if it improves your...
  5. Replies
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    5,161

    My 303 British cases converted to 410 are also a...

    My 303 British cases converted to 410 are also a bit under diameter at the base. After I fireform them I use a home made expander plug (in a 458 Win Mag expander die) to expand the base area. Because...
  6. Replies
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    5,161

    Impressive! It sounds like your method works very...

    Impressive! It sounds like your method works very well. My cases would be too short to load without a shot capsule, unless I left out the felt cushion wads. When I tried that the pattern started to...
  7. Replies
    17
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    5,161

    I load brass 410 shotshells made from fireformed...

    I load brass 410 shotshells made from fireformed 303 British.
    282032

    This is my procedure:
    1. De-prime cases.
    2. Clean cases with wet tumbler.
    3. Prime cases with large pistol primers.
    4....
Results 1 to 7 of 7
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