How much slower

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Boyd Heaton, Mar 23, 2003.

  1. Boyd Heaton

    Boyd Heaton Well-Known Member

    Messages:
    1,071
    Joined:
    May 14, 2001
    is RL22 over H4831?????
     
  2. FatBoy...

    FatBoy... Well-Known Member

    Messages:
    284
    Joined:
    Jan 6, 2002
    Lapua case, 210M, 142SMK, RL22@50.5gr = 2803fps

    Lapua case, 210M, 142SMK, H4831SC@50.5 = 2769fps


    These were both from CBS to 5 shot averages. After being fouled by 10, both powders spead up 30fps. SD for the H4831SC remains 10fps or better in a fouled bore with Rem 9 1/2M's.

    My last two lbs of H4831SC have run considerably slower (170 to 200fps) than my first 5lbs, but it's still the most accurate powder from my 26" 6.5x284.

    FatBoy...

    [ 03-23-2003: Message edited by: FatBoy... ]