Compressed load???

Discussion in 'Reloading' started by ogallala_1, Oct 24, 2012.

  1. ogallala_1

    ogallala_1 Well-Known Member

    Messages:
    205
    Joined:
    Mar 25, 2008
    SO I have been loading for a little while but need some clarification please. It was kinda my rule of thumb that a full case was good because the powder was then held closer to the primer and then could be ignited better. Is this not the case? When does a compressed load become detremental? Sorry for the spelling and thanks for your input.


    John
     
  2. MSLRHunter

    MSLRHunter Well-Known Member

    Messages:
    388
    Joined:
    Oct 3, 2009
    Generally speaking, a fill ratio of about 95-98% is where most of the cases I load for like to be. I have loaded some compressed loads and the issue I ran into was the compressed powder pushing the bullet up in the case.
     

  3. Kevin Thomas

    Kevin Thomas Well-Known Member

    Messages:
    1,256
    Joined:
    Feb 16, 2009
    Hi John,

    A full case certainly isn't "necessary" but it can help to avoid some position problems with some powders. If you're getting good ignition and uniform velocities, it isn't a problem regardless of the load density.

    On the flip side, some slow burning powders will almost always result in compressed charges. This too, is not a problem, at least so far as shooting goes. At some point you may run into a situation where the load density is well over the case capacity if the charge is just thrown or run through a powder funnel. Good place to learn about drop tubes. This is a standard funnel, with the addition of a long tube. This allows the powder to better settle into the case as you load, sometimes drastically increasing the amount of powder you can get into what would otherwise be an overflowing case. Drop tube lengths of 4" to 6" are pretty common, and are available through any number of soucres (Sinclair, Forster, etc.), and are pretty inexpensive. For some cartridge/powder combinations, they're the only way to get a full charge in the case. Beyond that, so long as you're not damaging the bullet during the seating process, or the bullet isn't being pushed back out of the case by the powder, a compressed charge is just fine.
     
  4. ogallala_1

    ogallala_1 Well-Known Member

    Messages:
    205
    Joined:
    Mar 25, 2008
    Thank you guys for your replies I feel alot better about my reloads now.

    john
     
  5. Kevin Thomas

    Kevin Thomas Well-Known Member

    Messages:
    1,256
    Joined:
    Feb 16, 2009
    No problem, and always happy to help!

    Stay safe.