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pressure question

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Unread 01-10-2003, 02:53 PM
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Re: pressure question


[ 07-11-2003: Message edited by: S1 ]
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    Unread 01-11-2003, 12:19 AM
    Junior Member
    Join Date: Oct 2002
    Location: virginia
    Posts: 15
    pressure question

    According to Hodgdon, the 300RUM operates at 10,000CUP higher than the 30-378. Does higher pressure erode a throat quicker?
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    Unread 01-12-2003, 11:35 AM
    MAX MAX is offline
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    Join Date: Sep 2001
    Posts: 263
    Re: pressure question

    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.
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