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Thread: Decrease pellet weight by 80 grains reduce powder by ?

  1. #1
    Boolit Mold
    Join Date
    Apr 2017
    Location
    I livein Sault Ste Marie Onrario just across the river from north tip of Michigan.
    Posts
    3

    Decrease pellet weight by 80 grains reduce powder by ?

    I am relatively new to reloading so I always follow recipes exactly, now I want to change to a lighter shot load. Was loading 9-00 buckshot (weight 484gr) got a mold that casts .31 diameter weight 403 grains that fit in wad ok but the weight difference is 80 grains. Do I reduce the powder by how much. This is the recipe I used for the 00 buckshot, 30 grains HS-6 Win209 primer WAA12 wad

  2. #2
    Boolit Master
    Join Date
    Apr 2017
    Location
    Minnesota
    Posts
    485
    I don't know that I would reduce that load any, and less than an ounce is getting to be pretty light for HS6, unless you want high velocities. If you switch to a faster powder, you can keep velocities down. I see load data in a gold medal hull, win 209, WAA12 wad, and 700X for 1 ounce of shot (438 grains). 15.5 grains @ 1,100 fps up to 18.5 grains @ 1,250 fps.

  3. #3
    Boolit Master GhostHawk's Avatar
    Join Date
    Mar 2014
    Location
    Fargo ND
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    4,183
    Increase of load weight means you need to lower charge to keep pressures lower.

    Decrease of load weight = less pressure. So If I lowered it at all it would not be much.
    I might add some buffer to help make up some of that weight.

    I also like loading .30-31 caliber balls over 00. Everything just works better. Pour in 9 balls and they self stack.

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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