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Thread: SPG Lub

  1. 09-21-2022, 11:31 AM #1
    Jim Miller
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    SPG Lub

    Thinking of using newly acquired star lubrisizer with SPG lub instead of pan lubing for black powder. Any advice or experience would be welcome.
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  2. 09-21-2022, 11:46 AM #2
    gmsharps
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    It works great. SPG is soft enough to not need a heater.

    Gmsharps
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  3. 09-21-2022, 12:17 PM #3
    fc60
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    Greetings,

    Interesting side effect using a Star Greaser with soft bullets.

    The pressure generated by the Star during lubing stretches the bullet. It becomes longer and smaller in diameter.

    The dimensional changes are subtle; but, they are measurable.

    It took us a while to isolate this problem.

    Cheers,

    Dave
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  4. 09-21-2022, 01:57 PM #4
    Springfield
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    Seems to me ALL sizers would do that. The lead has to go somewhere when squeezed smaller. I know when I accidentally put a 45 through the 44 sizer die it gets much smaller and longer.
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  5. 09-21-2022, 02:33 PM #5
    fc60
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    Greetings,

    To further clarify, the bullets were sized to a nomimal 0.457". The center of the bullet became 0.456". The front and rear bands measured 0.457".

    Cheers,

    Dave
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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