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Thread: 30-30 Cast Boolit Diameter

  1. #1
    Boolit Mold
    Join Date
    Feb 2013
    Posts
    9

    30-30 Cast Boolit Diameter

    So I have a buncha boolits here measuring around .312. Finally got around to slugging my Marlin lever and slug measures .308 bang-on. Should the boolit be sizes down a coupla thou or leave it alone ???

  2. #2
    Boolit Man Tom_in_AZ's Avatar
    Join Date
    Jan 2013
    Location
    AZ
    Posts
    113
    Id start with .309


    Sent from my iPhone using Tapatalk

  3. #3
    Boolit Master
    Join Date
    Jan 2011
    Location
    NE Kansas
    Posts
    762
    If you have a case fired in that rifle you may try to slide the .312" bullet in and out of the case mouth. If the throat is large, the case mouth will have expanded. If it is not a slide fit, then you will need to size the bullet smaller. You must have some neck clearance.

  4. #4
    Boolit Master
    FredBuddy's Avatar
    Join Date
    Jan 2013
    Posts
    247
    Thoughts from a non-expert:

    Make a dummy round and see if it chambers. My 1949 336A balks
    at loaded rounds with neck measuring .330. Brass makes a difference, too.
    I'm finding nickel plated brass with boolits at .310 is too big, but Winchester brass
    chambers OK with .310 boolits.
    My 5 other 30/30's will take larger boolits.
    If you read a lot here, you will see that most folks favor
    boolits sized at .310.

    P.S. There are lots of other variables besides diameter.

  5. #5
    Boolit Mold
    Join Date
    Feb 2013
    Posts
    9
    Thanks, folks. I'm forgetting about neck diameter after bullet is seated in the neck.

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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