pressure question

Discussion in 'Long Range Hunting & Shooting' started by Guest, Jan 10, 2003.

  1. Guest

    Guest Guest

    I

    [ 07-11-2003: Message edited by: S1 ]
     
  2. travis20032003

    travis20032003 Member

    Messages:
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    Oct 21, 2002
    According to Hodgdon, the 300RUM operates at 10,000CUP higher than the 30-378. Does higher pressure erode a throat quicker?
     
  3. MAX

    MAX Well-Known Member

    Messages:
    263
    Joined:
    Sep 10, 2001
    I think I'll walk out on a limb here and say that throat erosion is more a factor of temperature than anything else. Somewhere in the dim recesses of my memory I recall that it takes about 4000* F to start really eroding a barrel throat and that starts to occur as velocities exceed 3000 fps. It is I believe a function of the amount of powder burned vs. the bore diameter.