6.8 or .243 For Deer Hunting

Discussion in 'AR Talk' started by rupert, Aug 4, 2008.

  1. rupert

    rupert XDTalk 1K Member

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    I already have an AR

    http://www.xdtalk.com/forums/trading-post-sale-trade/77686-wts-loaded-ar-15-ks.html

    Should I buy a 6.8 barrel/Bolt/Mid-Length Gas tube.

    Or continue to sell this for a DPMS .243 (lightweight)

    I have alot of .243 brass already. Currently have another .243 bolt gun. I love the round.

    What will be the pros and cons of each round?
     
  2. RogueXD

    RogueXD XDTalk 5K Member

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    Depending on your topo and type of deer, I went with the 7mm, then the .308. I might use my 7.26 in close qtrs..
     
  3. dawggs

    dawggs XDTalk 100 Member

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    Both rounds are great, just stay away from the .243 wssm it more towards varmint hunting very fps. normal 243 work great i have killed plenty of deer and wild pigs.
     
  4. loonybin

    loonybin XDTalk 2K Member

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    [​IMG]

    The 6.8SPC will do for deer out to 300yds+, which I wager is farther than you will normally shoot.

    You want some very important specs with your 6.8 barrel so you can take advantage of the full range of 6.8 ammo. For your barrel you want:
    1:11 or 1:12 twist (not the 1:10 normally found)
    4 or 3 groove rifling
    SPC II or DMR chamber (NOT the SAAMI chamber!)

    This will allow you to use the hotter commercial loads, and maximum handloads.

    Just buy the barrel/bcg/gas tube for now, and get the rest of the upper later to have both 5.56 and 6.8SPC.

    Oh, and make sure to visit ..::68FORUMS::..!
     
  5. RobFMJ

    RobFMJ XDTalk 2K Member

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  6. vafish

    vafish XDTalk 1K Member

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    Tough call, I can see why you are having problems deciding.

    On one hand you are already invested in the .243. It's a decent deer round. Ammo is readily available, can do dual duty as a varmint rig or deer rifle.

    On the other hand you are probably losing money selling your AR to fund the .243 AR. 6.8 SPC is going to have a bit heavier bullets that theoretically should do better on deer.

    I don't have a .243 so a 6.8 or 6.5 upper would be my choice.
     
  7. nsnate02

    nsnate02 XDTalk 1K Member

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    6.8 SPC. Ballistically similar to .308 and will give you everything you need for deer up to elk, within range. The .243, while it will do the job, is a little underpowered for deer. Especially if you get that trophy buck!
     
  8. JhankG

    JhankG XDTalk 3K Member Founding Member

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    I like the rollmark, who makes it?
     
  9. englandcrown

    englandcrown XDTalk 1K Member Founding Member

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    6.8 upper
     
  10. RogueXD

    RogueXD XDTalk 5K Member

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    Well like I said, depends on deer and topo. If your shooting a Mule deer at 500yds with a .243 and you downed it.. I want to hunt with you! Depending on topo, in some of the areas I have hunted, there is no cover for 400+ yds.., but I have also been within 20yds.. The 7mm got me out to 600yds on the smaller west coast black tail cues, but hunting the the mules at 300 yrs, it opt for the .308 for the larger deer... I don't like tracking, thus I want to the deer to drop!
     
  11. Cuda66

    Cuda66 XDTalk 10K Member

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    To answer your basic question: .243. I think 6.8 SPC is going to become an obsolete cartridge in a fairly short time. As much as it's proponents like to talk it up, it ain't gonna replace 5.56.

    However...if I was looking at getting a .308 AR type platform...and didn't want to go with .308...

    I'd get one in .260 Rem (6.5-08 ). Do a little research on this cartridge, and you may understand why.

    As I understand it, you just need to resize the neck of your .243 brass to convert it to .260...
     
  12. loonybin

    loonybin XDTalk 2K Member

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    Ah, yes. It's going to become so obsolete that every major AR manufacturer except Colt makes uppers in 6.8SPC, there are 4 ammo manufacturers who make ammo for it, a growing list of reloading components for it, some LE agencies are starting to switch to it, and more people are discovering that it works great for antelope, wild boar, deer, elk, caribou, black bear... It has taken on a life separate from the military and it's success is no longer tied to the military adopting it.


    And if he does go the AR-10 route, I agree with you completely.

    It's based on the .308 case, actually.
     
  13. rupert

    rupert XDTalk 1K Member

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    .308 case = .260 case = .243 case.


    Some more info on where and how I hunt.

    I live in kansas and hunt open fields .25 mile x .25 mile and some wooded areas. I was looking at the AR platform due to my military background and love for the feel and accuracy it delivers.

    Deer in kansas can get quite large and I could possible take a shoot at 300 + yards.

    What scares me about the 6.8 is a 300+ yard shot on a 250 lb deer that is not perfectly broadside.

    Some people would even cringe at a .243 doing that work.

    In my deer hunting past I have used .357/.44/.30-30/.243. I am not a recoil freak and dont see myself as ever being one.

    More and More I am thinking to jump up to the .308.....Time will tell......
     
  14. vafish

    vafish XDTalk 1K Member

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    May want to consider the 6.5 Grendel or if you go with the .308 sized rifle get the .260 Rem instead.
     
  15. Bidah

    Bidah XDTalk 500 Member

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    I believe that they will equally do the job that you are looking for. The .243 will shoot a bit flatter, but both are effective at the same ranges. Shot placement and bullet selection will help a lot. I love the .243 but finally stepped up to .308 (AR-10). Now I want either a 6.8 or a 6.5G, but I can't decide.
     
  16. loonybin

    loonybin XDTalk 2K Member

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    True. I just thought that you needed to start with a .308 or 7mm-08 case instead of a .243 case. Looking at the shoulders more it would probably be easier to start with the .243 case.


    What a coincidence! I live in KS, too, and bought my 6.8 upper because I want to be able to make those long shots if that is all I'm presented with. I'm in Hutchinson and will be hunting around fields as well. I'd prefer to take one in the treebreak, but more likely it will be looking out over a field.

    If you use Silver State Armory's 110gr Barnes TSX Combat load out of an 18" or 20" barrel, or handload them even hotter (try 2800fps and still within SAAMI pressure), you wont have a problem. If they can take a 300lb. black bear (muuuuch tougher than a muley or whitetail) and a 550lb. cow elk, they'll do what you want. It's what I'll be using this December if I don't decide on a 130gr. handload. Go back and look at the hunting pic link that I posted earlier. One deer was killed at 329yds.

    The only one of those that is any good at 300yds is the .243. If you handload, you can get a 130gr Speer Hot-Cor up to about 2600fps and have retained energy at 300yds comparable to a 105gr bullet in .243 The 6.8 is definitely enough gun.

    The other thing to consider is the weight of lugging an AR-10 around as opposed to an AR-15.
     
  17. loonybin

    loonybin XDTalk 2K Member

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    It's not a rollmark. Notice it's on the wrong side of the magazine well...
    It's a vinyl sticker, that I got here.
     
  18. loonybin

    loonybin XDTalk 2K Member

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    I almost bought a Grendel for my deer rifle. I picked 6.8 instead for a few reasons:
    A) availability of ammo. 6.8SPC
    B) shooting at 400yds+? 6.5G
    C) Variety of vendors to choose from 6.8SPC
    D) do you handload? slight edge to 6.8SPC. (Grendel folks have been getting 2600fps with 120gr bullets out of a 28" barrel. 6.8SPC can push a 130gr to 2600 out of an 18" barrel. The longer 6.5 bullets eat case capacity, and the Grendel is limited to 50,000psi)
    E) Non-proprietary stuff, so parts and such are more versatile and available? 6.8SPC

    If I ever decide I want to get into long range competition or something, then I'll get a Grendel.

    My BRD is so contagious that I talked a sales rep that comes to my work into getting a Grendel, as he wants to do long range competition with it, and nail antelope at 400yds+. I've talked another sales rep (and friend) into building a 6.8SPC, and another two sales reps that come to my work into getting ARs in 5.56. This is all in the past 6 months!

     
  19. RobFMJ

    RobFMJ XDTalk 2K Member

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    Meh, I hope the 6.5 Creedmoor cartridge gets a decent foothold. Would love to see some good handloading and mabey wildcats from it.
     
  20. rupert

    rupert XDTalk 1K Member

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    Thanx for your info :)
     

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