In order to participate in the GunBroker Member forums, you must be logged in with your GunBroker.com account. Click the sign-in button at the top right of the forums page to get connected.

CHRONOGRAPH NOW???

pack rat633pack rat633 Member Posts: 1,052 ✭✭✭✭
edited February 2004 in General Discussion
Every one says some powders loose energy in cold weather. How can I check this out, my Chronie won't work below freezing, and I usually hunt in sub-freezing weather. what velocity am I really getting???

SEMPER FI MAC, SEMPER FI
· Share on FacebookShare on Twitter

Comments

  • AlpineAlpine Member Posts: 15,093 ✭✭✭✭
    edited November -1
    Well you need to put your ammo in the freezer, and set up the chrono on a mild day. When ready, take ammo out of freezer and test fire before ammo has a chance to warm up!

    "If you ain't got pictures, I wasn't there."
    ?The problem with socialism is that you eventually run out of other people's money.?
    Margaret Thatcher

    "There are three kinds of lies: lies, damned lies and statistics."
    Mark Twain
    · Share on FacebookShare on Twitter
  • cletus85cletus85 Member Posts: 2,104 ✭✭✭✭✭
    edited November -1
    As a matter of practice I've always chronographed my hunting loads in temperatures close to the ones I expect to use them in. Here in Missouri typical deer hunting temperatures range from 10-70+ degrees often in the same season[:D][:D] A typical range is 25-60 degress so I usually try to chronograph in the 35-40 degree range and figure it won't change things much. I'm currently doing a test where I chronographed some loads with a powder said to be temperature sensitive at near Zero and plan to retest load when temps approach 90 and see how much diff it really makes.
    · Share on FacebookShare on Twitter
  • Big Sky RedneckBig Sky Redneck Member Posts: 19,752 ✭✭✭
    edited November -1
    Grouping should also tell you some of what you need to know. My pet load for the 30-06 pump gun will shoot sub 1"@100yds in cold weather but in the summer time when temps are 80+ the same gun will shoot the same pet load 1 1/2".

    line2.gif
    email2b.gif
    hillbilly.gif
    · Share on FacebookShare on Twitter
  • Contender ManContender Man Member Posts: 2,110 ✭✭✭✭✭
    edited November -1
    Some powders have more tolerance for temperature swings than other, do some research on the different powders available for your loading.

    If you only have time to do two things so-so, or one thing well ... do the one thing!
    · Share on FacebookShare on Twitter
  • HighballHighball Member Posts: 15,755
    edited November -1
    pack rat633
    Member



    quote:USA
    588 Posts
    Posted - 02/05/2004 : 5:31:36 PM

    Every one says some powders loose energy in cold weather. How can I check this out, my Chronie won't work below freezing, and I usually hunt in sub-freezing weather. what velocity am I really getting???


    Find out why that Chrony won't work in cold temps.
    Or start using Varget or other "Extreme" Powders from Hodgdons..they are made to be stable thru temp. variations.
    · Share on FacebookShare on Twitter
Sign In or Register to comment.