Am I over pressured?

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

  1. duffman77087

    duffman77087 Former Guest

    23
    Sep 14, 2011
    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

    Jan 11, 2010
    Australia
    not by my figuring its high end ( top 8%) but not "over"
     

  3. steve4102

    steve4102 Former Guest

    Jan 27, 2006
    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