.243 or 6.5mm/.243

Discussion in 'Rifles, Bullets, Barrels & Ballistics' started by Methow Packer, Sep 22, 2013.

  1. Methow Packer

    Methow Packer Well-Known Member

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    I am rebarreling my Kimber .243 to a 26" fluted barrel. Probably a 8" twist Lilja. My interest is to shoot 105 gr pills with better BC for target and hunting. I'm wondering about changing calibers to possibly 6.5MM (.264) using the .243 case. I thought it would be easy enough. Reloading would be no problem. I'm sure it's done all the time but I know nothing about this wildcat. Can you guys tell me what this cartridge is like. Expected velocity with 130 VLD. Is it a good idea? This rifles short action dictates what cartridge size it can take. Is there a better option out there? .243 is a great caliber but would 6.5mm be better?

    Thanks Ted
     
  2. DocDoc

    DocDoc Well-Known Member

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    the 6.5/.243 is just the 260 Rem. For hunting, especially if that includes elk, the 6.5 is better. That would also be true if you are going to do a lot of very long range shooting.
     

  3. backwoods83

    backwoods83 Well-Known Member

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    I got a new cartridge in testing sort of based off an IMP version of the 243brk or 6.5slr, but its more efficient than either of those 2. Its can be made with Win, Horn, or Rem 243 bras, 260 rem brass or Win or Horn 7mm-08 brass, it can be loaded with 6br or 6.5 creedmoor dies. Initially we are getting one hole <.1" 3 shot groups with 142 smk's over H4350, jumping them .030" to fit the mag, and they are averaging 2987fps from a 27" 8.3 twist pipe.
     
  4. Gene Bland

    Gene Bland Member

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    Look real hard at the 6 mm BR. less powder same FPS and bullet. Easy reload.gun)
     
  5. Niles Coyote

    Niles Coyote Well-Known Member

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    6mm’s are all the craze right now in tactical LR matches as they offer less drop and match or best most of the 264 calibers used in those matches in the wind. Plus bullets are cheaper BUT that may be off set on barrel cost as barrel changes will occur quicker with most of the 6mm’s.

    For a hunting gun, if I was given the choice between 243 and 260 for hunting deer and smaller game it would be a tough call but the 260 does have an energy advantage and I would feel more comfortable with it at longer distances.
     
  6. Methow Packer

    Methow Packer Well-Known Member

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    Thanks all for your input. I've decided to stay with the .243 shooting the 100-115 bullets. Realize you can't have everything wrapped up in one cartridge. Considering I own also .270WSM and .300WM. Another question, going with say a 8" twist barrel for the larger bullets will I sacrifice performance with say 87 grain type bullets. I recognize there has to be a fine line as to what may be universal.
     
  7. roninflag

    roninflag Well-Known Member

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    you will not give up performance with 87's. have you been on 6mmbr.com??
     
  8. roninflag

    roninflag Well-Known Member

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    i would stay with 107 and under with an 8 twist. i bet you find they will do all you want and more.
     
  9. Methow Packer

    Methow Packer Well-Known Member

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    Great. Thanks for the info and I'll look at 6mmbr.com:)
     
  10. coyotekiller82

    coyotekiller82 Well-Known Member

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    I shoot the 87gr Vmax out of my 6 rem AI (pretty much a 243, but AI'ed) with an 8 twist and it's super accurate. Shoots target bullets up to 105-108 great as well!