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Thread: SOS - Cannot find IMR 8208 XBR Anywhere for the "Onyx/Markm special"

  1. #1
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    SOS - Cannot find IMR 8208 XBR Anywhere for the "Onyx/Markm special"

    It's OOS everywhere, albeit I am not too familiar on where to look (LGS, Brownells, Midway)

    I have a PRS Match in May and need more. Any tips?
    Why do the loudest do the least?

  2. #2
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    Probably going to have to find it locally if you can. Been in short supply online for awhile now.

    You may have to consider an alternative powder to work up loads.

    What caliber are you loading for?

  3. #3
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    It’s .223 loaded hot, way over SAAMI spec, with 77gr TMKs.

    Wonder if anyone has a similar low fuss load.

  4. #4
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    Someone cornered the Mark-et and is to blame for OOS everywhere.

    It also happens to be my favorite 77 gr BTHP load and I just bought a lone pound of XBR at local Sportsman’s Warehouse two weeks ago. Not too hot in my rifle shoots fine.

    A little less gas but very accurate for me is 23.0 gr Varget.
    It is in vain, sir, to extenuate the matter. Gentlemen may cry, Peace, Peace but there is no peace. The war is actually begun! ... Is life so dear, or peace so sweet, as to be purchased at the price of chains and slavery? Forbid it, Almighty God! I know not what course others may take; but as for me, give me liberty or give me death!" - Patrick Henry in an address at St. John’s Church, Richmond, Virginia, on March 23, 1775.

  5. #5
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    Quote Originally Posted by Eurodriver View Post
    It’s .223 loaded hot, way over SAAMI spec, with 77gr TMKs.

    Wonder if anyone has a similar low fuss load.
    I have a 77gr SMK load running CFE223 that has been pretty consistent in 1:7” barrels using CCI primers. Basically just the max listed load works well within +\- .2gr as far as the accuracy node in my heavier barrels.

    If you’re in a pinch try out some Hornady Superformance 5.56mm NATO 75gr BTHP Match ammo. Some barrels really like it, and it is definitely loaded hot if you’re trying to push the envelope of what your .223 will do at distance.

    I’ve had good luck with it in my SR-15, but every barrel is a law unto itself. Good luck.

  6. #6
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    I ran 22.4 gr of H322 up into the 2700s with a 20 inch barrel. We've never re-visited over max H322, but it showed real promise.
    "What would a $2,000 Geissele Super Duty do that a $500 PSA door buster on Black Friday couldn't do?" - Stopsign32v

  7. #7
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    You can check out. Bruno’s shooting supply in Phx.

    PB
    "Air Force / Policeman / Fireman / Man of God / Friend of mine / R.I.P. Steve Lamy"

  8. #8
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    AR-Comp at 22.3. My load is with 75 Hornady. Shoots sub moa in my 18” and 16” Noveske barrels and 14.5 Seekins barrel shoots just a little over with a 1-6.
    Last edited by glockshooter; 03-18-19 at 22:16.

  9. #9
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    I've had good loads with the 8208 and H4895. The H4895 and 75 Hornady BTHP is a good combo. I also use it with the 24" Tikka bolt, different charge though. I don't have my book at the moment, but 22.8 +/- on the semi with 75's. Should be 23.2 with 77/8208
    GET IN YOUR BUBBLE!

  10. #10
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    Sportsmans warehouse had it the other day. In Mesa AZ. But might have online too?

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