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Thread: Change 100grn 243 to 55grn for foxing - zero implications

  1. #1

    Change 100grn 243 to 55grn for foxing - zero implications

    I haven't done this on paper yet, but pondering. What would be the difference in shooting a lighter varmint round for foxing through my 243 (tikka 595, standard barrel) which has lived on 100grn for deer. It is zeroed on at 100 yrds.

    Ive got a bit of foxing to do and might pop for some more readily expandable ammo in the morning.

    Your thoughts please.

  2. #2
    why not just use what you always use ?

  3. #3
    Through my CZ550 in .243, Federal 55 grain nosler ballistic tip foxing rounds shoot 50mm higher at 100yds than the Federal 100 grain sierra gameking BTSP I use for roe.

  4. #4
    Don't bother I do a lot of foxing (200+a year) and I use 105 gr amax. Light bullets have crap ballistic coefficients

  5. #5
    Quote Originally Posted by Foxshot View Post
    Don't bother I do a lot of foxing (200+a year) and I use 105 gr amax. Light bullets have crap ballistic coefficients
    The same here, 105gr a max

  6. #6
    I had a Fox a few weeks back with 100gr powershock, just went straight through.
    "Eagles may soar, but, Weasels don't get sucked in to jet engines" Anon

  7. #7
    Ive been there got the tshirt etc, just stick to one bullet

  8. #8
    Thanks all.

    Quote Originally Posted by Ranger22 View Post
    The same here, 105gr a max
    Interesting..amax a good deer round as well? Is it available as a bought cartridge, as I don't reload.

    i will stick to the soft nose federals I use. Incedently, I have a few boxes of Geco that group ok..though not shot a deer with them yet, but should upset a fox.

  9. #9
    Quote Originally Posted by Foxshot View Post
    Don't bother I do a lot of foxing (200+a year) and I use 105 gr amax. Light bullets have crap ballistic coefficients

    Its worth mentioning that the 105 Amax run best with an eight twist barrel - Some rifles with a 9 twist will work , but stability is marginal and it usually has a detrimental affect on accuracy.

    The standard 243 is fitted with a ten twist - therefore totally unsuitable for this bullet. So if the OP or any forum members are considering this bullet , they will need a tight twist custom barrel fitted to your rifle.

    IME , For fox shooting, there are much better bullets than the 105 Amax . I think the vast majority of foxes are shot below 300 yrds ( in fact most below 200 yrds would be my guess) Therefore why use a bullet who's high BC benefits really only shine at ranges well beyond that ?


    For foxing , I prefer a faster , flatter bullet, the offers better expansion, than the slower an more solidly build target bullet.

    The lighter bullets also give more of a safety margin regarding pass through's or ricochet's and the felt recoil is noticeably less when shooting the lighter pills.



    Just my 2 penny's worth



    ATB
    Alan
    Last edited by sir-slots-alot; 29-08-2015 at 12:47.

  10. #10
    My Sako with the standard 22 5/8" 1 in 10 was tested with this bullet & gave groups in excess of one foot & many of them hit the board sideways!

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