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Am I over pressured?

Discussion in 'The Ammo & Reloading Forum' started by duffman77087, Oct 8, 2011.

  1. duffman77087

    duffman77087 Former Guest

    Joined:
    Sep 14, 2011
    Messages:
    23
    Hey everyone,
    I am reloading 30-30 ammo using Hornady FTX 160 Grain Bullets, IMR 8208 XBR Powder, & CCI 200 Primers.

    Here is my load...
    Case Trim Length-2.029"
    Powder Charge-29.3 Grains
    C.O.L.-2.532"

    Here is the loads for the bullet on the 8th edition Hornady Book...

    Case Trim Length-2.029"
    Powder Charge-Min. 28.2 Grains & Max 30.6 Grains
    C.O.L.-2.535"

    I have been reading forum's on over pressuring a round by seating the bullet too deep. I currently have 280 rounds of this reloaded to my specs and would hate to have to pull them and redo them.
  2. jack404

    jack404 Former Guest

    Joined:
    Jan 11, 2010
    Messages:
    17,592
    Location:
    Australia
    not by my figuring its high end ( top 8%) but not "over"
  3. steve4102

    steve4102 Former Guest

    Joined:
    Jan 27, 2006
    Messages:
    2,759
    Location:
    Minnesota
    This is incorrect information. Seating deeper within normal ranges does not increase pressure in a bottle necked rifle round, straight walled pistol yes.. In fact it decreases pressure. There are plenty of articles on OAL and pressure with actual pressure tested data showing a decrease in pressure with shorted OAL.

    Here is a chart of real Pressure tested data from the Un. of Mich.
    [​IMG]

    Here is one from an old manual.
    [​IMG]

    And here are some comments by John Barsness (Mule Deer) a writer for Handloader mag.
    http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/5474598/1

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