trimming cases

Discussion in 'Ammunition & Reloading' started by redraider, Mar 31, 2012.

  1. redraider

    redraider New Member

    8
    0
    0
    what length do you trim you cases too? what produces the best accuracy?
     
  2. cottontop

    cottontop Guest

    I trim them to the factory standard length as specified by the manufacturer.
    cottontop
     

  3. mountainman13

    mountainman13 New Member

    11,488
    0
    0
    Lol textbook answer. Nice
     
  4. robocop10mm

    robocop10mm Lifetime Supporting Member Lifetime Supporter

    11,380
    1
    0
  5. BlueTurf

    BlueTurf New Member

    1,038
    0
    0
    I simply refer to the recommended trim length listed in the reloading manual I am using.
     
  6. Shade

    Shade New Member

    1,720
    0
    0
    Any consistent length will work as long as it does not excede the max.
    length for the cartridge in question. Most reloading manuals recommend
    a trim length of -0.010" from the max. case length. For hunting and
    competitive loads I trim to this specification, Max. -0.010". For plinking, fire
    forming, fouling rounds, rough sighting in rounds and general f-ing around
    stuff anything under max case length is loaded.

    If a case is too long you can pinch the bullet in the case mouth due to the
    chamber cone transition to the rifling of the barrel. And that is very bad as
    the chamber pressures can spike very high and cause rupturing of the
    chamber or barrel, both very bad situations.