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5.7 or 6.8 or??

Discussion in 'Black Rifle Forum' started by gsdrulz, Jan 13, 2011.

  1. gsdrulz

    gsdrulz

    524
    0
    Feb 15, 2008
    South-central 907
    I have a ROGGIO ARSENAL lower that I have built up with left over parts from other builds. I have never really had any plans for it as it was a spur of the moment purchase. I am looking or ideas on what Cal. upper to finish it with. It will just be a plinker rifle for range use or gravel pit use. I am looking for something different and fun to shoot. Any ideas?


    Thanks
    gsdrulz
     
  2. 9mmParabellum

    9mmParabellum

    211
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    Jul 11, 2010

  3. mjkeat

    mjkeat

    3,447
    3
    Jun 17, 2009
    Midwest
    .300 BLK. The ammo will be cheaper and you can use all of your 5.56 parts except barrell.
     
  4. Bushflyr

    Bushflyr ʇno uıƃuɐɥ ʇsnɾ Millennium Member

    3,524
    0
    Mar 17, 1999
    Western WA
    .458 SOCOM. Might as well build something that can take down a PO'd moose.
     
  5. Just plinking in a gravel pit, get a .22LR upper.

    If not that get a 7.62x39 so you can buy cheap ammo.

    If you really want something different look at a .25-45 Sharps. Should be announced at the Shot Show.
     
    Last edited: Jan 13, 2011
  6. mjkeat

    mjkeat

    3,447
    3
    Jun 17, 2009
    Midwest

    If youre going russian steel you can get 5.56 for a little less.
     
  7. AK_Stick

    AK_Stick AAAMAD

    17,397
    1,119
    Jan 20, 2004
    Alaska, again (for now)
    Do you hand load?

    if not, I'd steer clear of the 6.8, and 458, as well as the new sharps load.


    Infact if you want a difference caliber, I'd say 5.45, then you can have some cheap ammo.
     
  8. gsdrulz

    gsdrulz

    524
    0
    Feb 15, 2008
    South-central 907
    :dunno:


    I do reload a little but just for my .338 Win Mag.

    I have looked into the .22 uppers but I already have 2 10-22's so no real need there.

    I keep coming back to the 5.7x28 upper just cause it really different. I guess I should look into the others that people have mentioned 458, 25-45, 7.62x39 and so on. Keep the ideas coming,

    Thanks
    gsdrulz
     
  9. AK_Stick

    AK_Stick AAAMAD

    17,397
    1,119
    Jan 20, 2004
    Alaska, again (for now)
    Where are you in the Southeast?

    You can get some good 6.8 ammo. But I'm not sure I'd buy a caliber like that if you live in Kodiak, or Juneau where you can't just drive down the road and get the good stuff.


    6.8 can be loaded to be a very effective AK caliber for black bears, bou, and black tail deer. I wouldn't use it on a moose. Though I might try an interior griz with one this year. But like the Sharps and 458 Socom, in our local, its mostly a handload only caliber.


    The Socom wouldn't be a bad choice, if it wasn't so anemically loaded.
     
    Last edited: Jan 14, 2011
  10. Bushflyr

    Bushflyr ʇno uıƃuɐɥ ʇsnɾ Millennium Member

    3,524
    0
    Mar 17, 1999
    Western WA
    I only hand load, so I haven't paid any attention to the factory loadings. Are they downloading the factory loads or are you referring to the cartridge design itself?
     
  11. AK_Stick

    AK_Stick AAAMAD

    17,397
    1,119
    Jan 20, 2004
    Alaska, again (for now)
    I've not seen any real decent factory loads. On the internet I've found a couple, but everything in the stores I've found has been 300 grain bullets, at around 1800 fps.


    Hand loads look promising, but I think for a hunting rifle, I'd reach for a 45-70 before I grabbed a 458.
     
    Last edited: Jan 14, 2011
  12. Bushflyr

    Bushflyr ʇno uıƃuɐɥ ʇsnɾ Millennium Member

    3,524
    0
    Mar 17, 1999
    Western WA
    .45-70 doesn't fit in the mag. ;) But yeah, that's about what you're going to get. The limitation in the 458S is bolt thrust. We can load to much higher pressures but it starts breaking the teeth off of the bolt. (Large bore diameter + opened bolt face) FWIW I'd trust the SOCOM against anything on the NA continent, especially with my 405gr thumpers, but that's just me. And, you're right, there is definitely no way they're going to come close to a hot 45-70 or a 450 Marlin.
     
  13. AK_Stick

    AK_Stick AAAMAD

    17,397
    1,119
    Jan 20, 2004
    Alaska, again (for now)
    At the kind of velocity you're seeing, I wouldn't choose the 458 for big AK bears.

    I'm not even a fan of the 45-70 with hardcast loads above 400 grains for the big boys. Thats when I want my 416 Rigby or more.


    But aside the two big bears, everything in NA is safely in the 405 envelope.
     
  14. gsdrulz

    gsdrulz

    524
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    Feb 15, 2008
    South-central 907
    I live most of the year in Juneau. I do spend a lot of time over in Hoonah. So my ammo choices are really slim and dramatically over priced. I am looking into the 458 socom now as well.
     
  15. Bushflyr

    Bushflyr ʇno uıƃuɐɥ ʇsnɾ Millennium Member

    3,524
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    Mar 17, 1999
    Western WA
    ^^ Man, that brings back memories. Is Layton Bennett still flying around up there or did the FAA completely shut him down?
     
  16. turbobrick

    turbobrick

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    May 26, 2008
    Carson City, NV
    The 5.7 upper is stupid fun. The recoil is non existent, and with that heavy-ish barrel the groups are superb. If you like ARs, the 5.7 will be up your alley. I just placed an order for a 450 Bushmaster upper too, I like the large bore in a carbine concept, might be useful up in that part of the world.
     
  17. gsdrulz

    gsdrulz

    524
    0
    Feb 15, 2008
    South-central 907
    L.A.B flying service (look another bear) is completely shut down something about not keeping their maintenance log books legit. The old coot still jumps in a plane and flies himself around though.

    Again the 5.7 sounds really fun thanks turbobrick.
     
  18. remember911

    remember911 Remember911

    78
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    Apr 18, 2008
    Sturgeon
  19. Constructor

    Constructor Moderator

    552
    5
    Dec 10, 2009
    Roaming
    Hornady
    Remington
    SSA
    Sellior & Bellot
    Double Tap
    BVAC
    make or load 6.8 ammo now, Nosler and PRVI are starting to load this year, there is plenty of 6.8 ammo out there, may have to get online to find some of it but it is available.

    The 5.45 is a blaster, it's not good for varmints or hunting or target shooting accurately.
     
  20. AK_Stick

    AK_Stick AAAMAD

    17,397
    1,119
    Jan 20, 2004
    Alaska, again (for now)


    Not available where we live.