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6.8 vs 300 blk for sbr

Discussion in 'General Firearm Discussion' started by freestylmx, Oct 3, 2011.

  1. freestylmx

    freestylmx AZ New Member

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    Im considering building an sbr and I will not be using 5.56 because of the crappy ballistics out of short barrels.
    Im wondering which has the best ballistics out of an sbr, the 300 or 6.8
    The weapon would be used for 200 yds and under, and I want a round that will be good for killing the sh1t out of people if they try to steal my food and hurt my family during the upcoming financial meltdown/shtf...whatever
    Also Im not interested in supressed capabilities either...just a kick *** high powered killer round out of a 8-11" barrel
     
  2. nitestocker

    nitestocker woodland washington Well-Known Member

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    your watching to many movies
     
  3. nubus

    nubus Guest

    Put down the mouseguns and build a 308 SBR, but to answer your original question see below...
    According to AAC's website the 300BLK has better terminal velocity out of an 9" bbl. than 6.8. (AAC LINK)
    That being said, unless you load your own, 6.8 ammo is significantly cheaper right now.
    300BLK also uses standard 5.56 mags and a standard 5.56 BCG.
    I load my own and I own a 300BLK myself.
    My 2 cents.

    And regardless of any potential SHTF event, I wouldn't be posting any intent to kill people.
    It makes you sound a little bit crazy, and supports what nitestocker said.
     
  4. FMJ 911

    FMJ 911 Snohomish, Washington Active Member

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    I agree, I would prepare to DEFEND, not kill. Plus if you keep a low profile, then the bad guys will pass on by, and never see you. And I'd say the .300 is cool, but 6.8x43mm Ammunition is easier to find.
     
  5. Nwcid

    Nwcid Yakima and N of Spokane Well-Known Member

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    The whole point of the .300 Whisper/Fireball/-.221/-.223/BLK is for silencer use with subsonic ammo. That is the reason it was developed. It is not a new round has been out for over 2 decades now. Remington just bought it more mainstream.

    No SBR allowed here but this is a .300 Whisper

    DSC_0004-2.jpg

    Why not a .338 Whisper? How about a .50 Alaskan? .458 Socom? .50 Beowulf? You can get/build just about any caliber you can come up with in an AR.
     
  6. FarmerTed1971

    FarmerTed1971 Portland, Oregon, United States Well-Known Member

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    Give it another year, I predict the NFA crowd will hype the 300BLK into a readily available round. I'm building one myself.
     
  7. JackFrost

    JackFrost Central Oregon Active Member

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    You can do this with a .22 if you are a good shot! Besides, your post kind of rings along the lines of killing someone till their dead? Redundant!
     
  8. freestylmx

    freestylmx AZ New Member

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    I dont watch movies really anymore. You guys are kind of kidding yourselves by saying "killing" an attacker on our life sounds like Im crazy.
    Ok you guys can "defend" your family by not going for kill shots, maybe shoot them in the foot so you sound more like a politically correct nice guy, but not me.
    If someone was going to attack me or my family in a life threatening way, I am going for world war three on them...you guys can be pc and talk nicely to them while they are raping your wife shooting your dog and killing your kids.
    Not to say this will EVER happen...but better be prepared for the worse and it not happen than the other.
    Back to the original point of the thread, someone said just go with a sbr 308, that sounds like the best idea
     
  9. Will_Power

    Will_Power OR via OK Active Member

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    I'm just gonna be forever bummed one of the the .35 Gremlin variants never made it. Would have loved a .35 Remington in an AR.
     
  10. Nwcid

    Nwcid Yakima and N of Spokane Well-Known Member

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    Well AR's are easy to build. Have a barrel maker build you the correct barrel......
     
  11. freestylmx

    freestylmx AZ New Member

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    Everyone take a look at this link. It talks about just how unprepared America is for an EMP attack or a huge solar flare that would take us right back to the dark ages. All you that think I or many of us watch too many movies should read this. Also the book "One Second After" is a good one to read.
    Better to be prepared for something like this rather than just sit there and make fun of people who prepare for the worst

    An EMP Attack on America? | FrontPage Magazine
     
  12. civilian75

    civilian75 Hillsboro, OR Well-Known Member

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  13. freestylmx

    freestylmx AZ New Member

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    that 45-70 suppressed is very cool!