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Thread: Need heavy 405 win load

  1. #1
    Boolit Mold Bulseyetom's Avatar
    Join Date
    May 2009
    Location
    Santa Maria, CA
    Posts
    22

    Need heavy 405 win load

    I am shooting a modern single shot with a 350 gr gas check boolet cast of 20:1 alloy and want to get the most velocity that I can get with an accurate load for hunting. Since powder is scarce I tried Vihtavoiri N133 with good results starting at 30 grains up to 39 grains. Since I don't have a chronograph I have no idea what velocity I got but no leading occurred so that is good! Any ideas how much more I can go or some other loads with another powder that might get me to 1800 fps. Thanks. Tom

  2. #2
    Boolit Master

    Loudenboomer's Avatar
    Join Date
    Nov 2007
    Location
    North Western Minnesota
    Posts
    799
    Can you get AA 5744?
    If liars pants really did catch on fire, watching the news would be a lot more fun!

  3. #3
    Boolit Master
    Join Date
    Sep 2006
    Posts
    550
    I would consider Reloader 7 if you can find some.
    beltfed/arnie

  4. #4
    Boolit Buddy muskeg13's Avatar
    Join Date
    Mar 2007
    Location
    Houston, Alaska
    Posts
    401
    Use at your own risk, but no undue pressure signs in my Miroku M1895 .405.
    416 RCBS 350gr sized to .413, weight lubed with gas check varies between 360-363 grains depending on the alloy. Hornady cases:
    RL-7 48.0 gr - 2140 fps
    RL-7 49.0 gr - 2232 fps/2279 fps (4190 ft lb) Loads shot several years apart. Weather conditions not recorded.
    RL-7 50.0 gr - 2285 fps
    Varget 51.0 gr - 1947 fps (poor accuracy)
    Varget 56.0 gr - 2118 fps
    Varget 57.0 gr - 2122 fps
    Benchmark 53.0 gr - 2160 fps
    Except for the 51gr Varget load, all shot less than 2" at 50 yds with iron sights. Cast bullet accuracy seems acceptable for hunting given my sight limitations (human and rifle), but I've found the 300 gr Hornady, either FN or SP, to be more accurate (2" or so at 100 yds).
    Last edited by muskeg13; 08-01-2021 at 09:37 PM.

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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