215 hybrid how far off lands?

Discussion in 'Reloading' started by Cheyenne 1, Apr 10, 2013.

  1. Cheyenne 1

    Cheyenne 1 Well-Known Member

    Dec 9, 2007
    Just starting load development formy 300 RUM in a Remington Sendero.
    Using retumbo to start with. Have loaded them at 50 thou off lands and are 3.900 COAL. Shot good, just doing some fine tuning. Was wondering where everyone was having the best success? Close to the lands or more of a jump.This thing has a pretty long throat in it.
    Just trying to sped the process up, its kind of a pain in the A## right now, we can't shoot in my back yard cause the snow is still to deep. :rolleyes:

    BULLBLASTER Well-Known Member

    Feb 6, 2012
    i run mine at 3.800 in my sendero. i think they are around 0.1 off the lands. i have never really measured other than chambering a bullet in a fired case then measuring it. these have been legitimate 1/2 moa in my gun out to 500 yards and moa or better after that (shot to 990).
    they are really working well for me.
  3. benchracer

    benchracer Well-Known Member

    Dec 18, 2009
    The whole point of the hybrid design is to provide a high bc bullet without the sensitivity to seating depth of the VLD designs. I doubt very much that fine tuning your seating depth with a hybrid will yield much in the way of an accuracy increase.

    With the hybrid, your COAL can be dictated by your chamber and magazine dimensions. Load to a length that feeds and functions in your rifle and work up your powder charges to find your accuracy nodes.

    I just finished working with some 185g Hybrids in a .308. They were very easy to tune using powder charge.
  4. birddog67

    birddog67 Well-Known Member

    Jan 26, 2011
    3.989 base to ogive is what I load mine right a .025 off the lands