Question for RL-22 in magnum shooters

Discussion in 'General Discussion' started by royinidaho, Jun 5, 2005.

  1. royinidaho

    royinidaho Writers Guild

    Messages:
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    Jan 20, 2004
    Having some funny experiences "I think".

    Shooting a 338 Win with 75 gr RL-22 behind Sierra 250gr gamekings and FED-215 primers. Velocity is right at 2800 fps. SD is good. COL is 3.35". Pressures "appear" a lot lower than 74 grains of RL-22 and the 225 gr bullets.

    The symptom appears in the muzzle blast. When groups are good (less than inch at 200) there is a "certain" muzzle blast. When groups go to pot muzzle blast sends the chrony reflectors like scattered quail. No kidden! Muzzle blast can be seen in the tree branches/leaves about 30 feet away.

    Saturday after I got the dies set up 3 3-shot groups averaged <0.6". Velocity spread was tight. Then things went to pot. Muzzle blast blew the plastic reflectors every shot for the next 3 groups. Velocity spread was still good. Groups opened to 4 or 5 inches.
     
  2. Frank in the Laurel Mts

    Frank in the Laurel Mts Well-Known Member

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    71
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    May 29, 2001
    Great powder..shoot it in a 6mm/284, great groups with just about everything else I use it in..only drawback..it's dirty, really makes a mess with all the residue it leaves behind, at least in my bores...just switch over to "H-4350" and end most of the problems..I've found the the "H" versions shoots better in all my magnum rifles..