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Thread: Full power load required to size brass?

  1. #21
    Boolit Master
    Join Date
    Feb 2013
    Location
    Boulder CO
    Posts
    750
    In any event. No, full power loads are not needed to fire form. I like 14 grs of Alliant 410 topped up with cornmeal and sealed with a wax cap. Any light load of fast powder topped with cornmeal or COW will work well - the filler expands the brass effectively.

  2. #22
    Boolit Man
    Join Date
    May 2005
    Posts
    99
    Lyman Item # 2660299 303 RN GC 200 gr 314299

  3. #23
    Boolit Master


    Larry Gibson's Avatar
    Join Date
    Jul 2005
    Location
    Lake Havasu City, Arizona
    Posts
    16,458
    Okay, that's a good bullet. Yes 16 gr of 2400 may fire form the cases, especially if a Dacron filler is used. I suggest 18 gr with the bullet seated out so it is firmly seated against the leade when the cartridge is chambered. You may also want to slightly lube the cases so they don't stick to the chamber walls. You want the case head thrust against the bolt face so the case shoulder is blown forward to fire form.
    Larry Gibson

    “Deficient observation is merely a form of ignorance and responsible for the many morbid notions and foolish ideas prevailing.”
    ― Nikola Tesla

  4. #24
    Boolit Master
    Join Date
    Jul 2013
    Location
    Florida
    Posts
    546
    Get a 32 caliber mold for your model 99, I'm using a 100 grain .312 Lee mold and loading them as dropped over 5 or 6 grains of Bullseye, I use the .7 cc Lee powder dipper. It works great to fire form trimmed 30-06, 270 and even 8x57 brass to use as 7.7x58 brass. You only need a light load to move the brass and shooting plinkers is a ball out to about 50 yds.

  5. #25
    Boolit Master

    Wayne Smith's Avatar
    Join Date
    Mar 2005
    Location
    Hampton Roads, Virginia
    Posts
    10,245
    Yup, item # and mold # are very different things. We typically use mold number here - thus the confusion. Thanks for clearing it up.
    Wayne the Shrink

    There is no 'right' that requires me to work for you or you to work for me!

  6. #26
    Boolit Master
    Rcmaveric's Avatar
    Join Date
    Jul 2017
    Location
    Jacksonville, FL
    Posts
    902
    To make Grendel brass from 7.62X39 I just use my cast bullets and about 13g of 2400. Makes a nice plinking round for the kiddies to pop off for me.
    "Speak softly and carry a big stick; you will go far."
    ~Theodore Roosevelt~

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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