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Thread: Unique in large magnum rifle calibres?

  1. #1
    Boolit Buddy
    Join Date
    Jul 2015
    Location
    Gloucestershire, UK
    Posts
    127

    Unique in large magnum rifle calibres?

    Hi guys. I'm hoping to get some feedback from you regarding Unique powder loads in large rifle calibres please. I'm looking specifically at the .416 Rigby, but experience with other rounds would also be helpful.

    So far I've found .50BMG - 15gr, .460 Weatherby - 20gr, .338 Win Mag - 17gr. I've been loading 13gr in my .45-70 for a while since you guys encouraged me to try it, it works very well. I'll be using an RCBS 416-350-FN in the Rigby and am thinking of starting at around 15gr. What do you think?

  2. #2
    Boolit Master

    Join Date
    Mar 2011
    Location
    oklahoma
    Posts
    2,491
    Should be a good starting point, but I'd expect you to go higher than that depending on velocity you're looking for.

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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