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Blackfoot,

That's good you do your home work.  I see a couple of what I would call flaws in this theorum.  First the bullet.  It isn't what I would call a bullet for bruin.  Secondly why introduce errors into the trajectory that may come back to haunt you.  Specifically the 4" M.O.

Why not sight in with a 300 grain Partition, or A-frame at 2700 fps. Sight in 2.0" high at 100 yds, this would give an M.O. @115 yds of about 2.0",  and a zero at about 200 yds and about 2" low at 230 yds, with a Max PBR of 260 yds for a 4" radius. (4.0" low at 260yds).  Better bullet for bear.  Better trajectory for bear, for a more precise shot.  Truly a good plan of trajectory for any range that would be reasonable for brown bears.  You'll need every edge, up against the tough guys.  Don't you just love the 375 Weatherby.  
Good shootin'.

Murphy

Message Thread:

• Sighting In For Bear blackfoot Mar 13 2006
  • Bear sight in .338 mag. Mar 15 2006
  • MPBR is a joke RobR Mar 15 2006
    • So not the case!!! Brian Richardson Mar 15 2006
      • wow brian.. BRWNBR Mar 15 2006
        • LOL... Brian Richardson Mar 15 2006
          • hear ya brain BRWNBR Mar 16 2006
    • energy BRWNBR Mar 15 2006
      • energy blackfoot Mar 15 2006
        • energy blackfoot BRWNBR Mar 15 2006
      • That's It.. Murphy Mar 15 2006
  • .375 Magnum Rifles (good stuff to mull over) Brian Richardson Mar 14 2006
    • .378 Weatherby mtcop71 Mar 14 2006
      • 378 drop damgoodshot Mar 14 2006
        • Forgot the 1 mtcop71 Mar 14 2006
  • Point Blank Range Murphy Mar 13 2006
    • PBR blackfoot Mar 13 2006
      • Your 375 Wby Murphy Mar 14 2006
        • Errors? blackfoot Mar 14 2006
  • Shoot what you know pblackb592 Mar 13 2006
    • Sighting in AlaskaCub Mar 13 2006