6mm/243 wildcats?

Discussion in 'Long Range Hunting & Shooting' started by huntokanogan, Apr 17, 2011.

  1. huntokanogan

    huntokanogan Well-Known Member

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    What is out there for 6mm/243 size bullets in a wildcat or improved round that people realy like?
    Everyone knows of the 243 AI, and the 6mm-06 is an interesting cartridge to me but maybe a little large.
    Is there aything comperable to a 243 AI out there? maybe something based on a 6mm round? guess I could jump up one cal. and look at the .257 pluss P or 25-06. But realy looking to stay in the 6mm size as I would like to get a 25-06 someday.
    Let me know what you think
    Thanks for the help
     
  2. BradArnett

    BradArnett Well-Known Member

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    I think....that it's really hard to out 243 a 243...or a 243AI.

    It's just a nicely balanced cartridge. I know alot of guys like the 6mmRem but a 243AI is a 6mmRem and it has none of the COAL issues when running long, high BC, bullets in a S/A. 243AI is about my 2nd favorite cartridge (223AI being #1) and I'm on my 2nd and planning a 3rd. All that being said, I just ran a piece of 25-06AI brass into my 243AI die and seated a 105VLD in it. The 6mm-06AI is a NICE looking cartridge but I don't know if it would be too much of a good thing,?, as the 6mm-06 is really right on par with the 240weatherby as it is. I've been considering doing a 6mm-06 just for the 115VLD, but we'll see.
     

  3. B23

    B23 Well-Known Member

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    6-284 seems to work well for many of us.
     
  4. RockZ

    RockZ Well-Known Member

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    Yes
    The 6-284, say no more
    I'm shooting 107smk s at 3395 fps with awesome accuracy
    Its my favorite 6mm
     
  5. B23

    B23 Well-Known Member

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    The 6-284 is so easy to do I'm not sure it really counts as a "Wildcat".... :D

    Top notch brass. No extra dies to buy for necking down. Can be used in both a short and long action.

    Heck, what's not to love about a 6-284 if you are looking for a hot rod 6mm/.243
     
  6. JARHEAD1371

    JARHEAD1371 Well-Known Member

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    I've heard good things about the 6x47 Laupa. I couldn't locate the thread I remember about this cartridge, go figure. Also check out the 6XC. Good luck.
     
  7. cinch

    cinch Well-Known Member

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    There is also the 6mm Crusader. SenderoMan has one. I'm sure he'd be glad to fill you in. It's an improved 6mm Remington I believe.
     
  8. cakes

    cakes Member

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    6mm SLR is based on the .243 case. Very accurate and quite similar to the 6XC just a tad bit more case capacity.
     
  9. big mike 2121

    big mike 2121 Well-Known Member

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    M 23,

    Where can I get more infor on the 6-284? whats the parent case, how do you size it?
     
  10. B23

    B23 Well-Known Member

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    I use Lapua 6.5-284 brass. Run it thru a 6-284 FL die and out pops a 6-284 piece of brass ready to load.

    The 6-284 is a VERY popular round. A search here at LRH or a quick google search will yield you tons of information. You can also look on reloaders nest dot com for LOTS of different loads but use caution when using someone elses load information. Start low and work up.
     
  11. dkhunt14

    dkhunt14 Well-Known Member

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    A 6BR or dasher is hard to beat. They are really accurate and won't eat barrels. A dasher will run 107's at 3050 and accurate barrel life will be 2000 rounds. They have set a lot of records in 600 and 1000 yard shooting. I have seen a lot of 5 inch 10 shot groups at 1000 yards. The 6BR brass from Lapua is second to none and lasts forever. The sraight 6 BR will be about 2900 with 107's. Matt
     
  12. Outlaw6.0

    Outlaw6.0 Well-Known Member

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    IIRC the 6mm Crusader has a slightly different case design? George @ GAP was talking it up over on ShipersHide (I think that's who it was), sounds interesting, I would like to see that cartridge sitting next to the 6mmAI & the 6-284 as I have both & would like to see the difference.


    BTW- to the OP, the 6-284 is one BAD mama-jamma, do some research on here, Lapua brass & a 107SMK with Ramshot Magnum.... THAT will put a big smile on your face.
     
    Last edited: Apr 19, 2011
  13. Buffalobob

    Buffalobob Writers Guild

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    The 6-06, 6-284 and 240 Wby are all the same class of cartridge and will deliver really impressive speeds with bullets in the 105-115 grain range. Speed is not free and you will pay for it in throat erosion. I shoot mine only about three occasions a year and perhaps a total of 15 rounds a year so it still delivers accuracy down in sub 0.3 range. It is fantastic on antelope well beyond 1000 yards.

    A lot of the choice depends upon what you wish to do with the rifle. If you wish a high volume cartridge then drop down to some of the milder versions previously recommended.
     
  14. budlight

    budlight Well-Known Member

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    The 6XC is what I'm having built. 22-250 case necked up to 6 mm. A 243. uses @ 47 grains of powder the 6 xc is @ 37 grains and only about 100 fps down in speed