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Thread: Question about 5.7 Spitfire

  1. #1
    Boolit Bub Postell's Avatar
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    Question about 5.7 Spitfire

    Has anyone ever used a cutdown 223 sizing die to finish forming and resizing cases?

  2. #2
    Boolit Master
    scb's Avatar
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    Not this specific combination 5.7/223 but I tried it with something else. It was a long time ago and a dismal failure so I don't remember what it was. I do remember it was impossible for me to maintain concentricity between the neck and the body of the case. While It's not impossible to get a useable casing doing it the way you propose, I believe you'll be throwing away a lot more brass than you'll be shooting. I shoot the 5.7 and I know forming and loading dies are expensive. Maybe someone else will have a better solution.
    "Those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety".
    Benjamin Franklin

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  3. #3
    Boolit Bub Postell's Avatar
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    Thank you..

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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