1. Bikerdoc's passing and how you can help

    As many of you know, bikerdoc- AKA Al Spiniello- is no longer with us. There are always extra expenses when someone passes. If you would like to contribute to support his family, please do so here: Bikerdoc GoFundMe page.

    (Note - this notice can be dismissed by clicking on the X in the upper right corner.)
    Dismiss Notice

Powder equivalent Win and lake City

Discussion in 'Handloading and Reloading' started by wbstx11, Dec 4, 2015.

Thread Status:
Not open for further replies.
  1. wbstx11

    wbstx11 Member

    Joined:
    Dec 3, 2015
    Messages:
    47
    Location:
    Houston
    I just started loading for my Ruger American 308; this is just my own challenge to see how accurate I can get. I loaded up a min/max spread or 5 rounds each at 1/2 gr increases for Varget with Barnes 165gr TSX BT. Started at 41 gr and went to 45 gr. The goal was to get close on a powder charge to do a finer spread. All loads were with new Winchester brass and CCI LR primers. I determined 43gr should be the center of my next series (42.5 to 43.5) with 0.2 gr jumps maybe only 1 gr min/max? Question: if I use Lake City mil brass, what would be the recommended change in powder charge to roughly duplicate the same charge in the Winchester brass?
     
  2. rcmodel

    rcmodel Member in memoriam

    Joined:
    Sep 17, 2007
    Messages:
    59,076
    Location:
    Eastern KS
    Your guess is as good as mine.

    No way to tell you that, even if you knew the exact case capacity of each one.

    Military 7.62 brass is usually heavier, and of less capacity.
    But not always.

    But to my knowledge there is no exact rule on how much less powder it takes to get the same results.

    You just have to spend powder, primers & bullets testing loads to find out in your rifles barrel & chamber.

    rc
     
  3. cliffb

    cliffb Member

    Joined:
    Jan 1, 2003
    Messages:
    38
    Location:
    Nevada
    Reduce your loads about .4 grains if using Lake City or Federal brass.
     
  4. jwrowland77

    jwrowland77 Member

    Joined:
    Apr 8, 2012
    Messages:
    2,293
    Location:
    Central Arkansas
    There's really no way to tell.

    When changing any component within the load, I was taught to start at the beginning again. Start low and work your way up again. No need to start at anything less than the minimum. Just start their and you'll be good.
     
Thread Status:
Not open for further replies.
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice