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  1. #1
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    Default 300 AAC Blackout Supersonic load data

    I know that a lot of work has been done in the subsonic area for this round, but I am more interested in loading it supersonic. Poking around on google I have found a decent amount of load data, but it seems like the development of supersonic loads is a bit stagnant.

    My intended use is hunting antelope out here and whitetail deer back in Tennessee. What I think I want is a 115-125gr boattail leaving at around 2800 or so fps, which (I believe) should make the round effective out to and beyond 200yds.

    I get that the case is a very efficient design and think I have a good understanding of the powder selections out there currently being used.

    That said, is anyone out there (meaning here, near me) pushing the supersonic loads? Any promising load data so far?

  2. #2
    Paper Hunter G__Fred's Avatar
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    Cool 300 Blackout Load Data -

    Contacted bolt Alliant and Accurate Technical desks to see if they had developed data.

    Accurate: Provided the attached file.

    Alliant: Stated that they have not yet secured a barrel to test and develop loads.

    Attached Files Attached Files

  3. #3
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    Cool, and pretty much echos what I have found.

  4. #4
    At least my tag is unmolested
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    Default

    Quote Originally Posted by dwalker460 View Post
    My intended use is hunting antelope out here and whitetail deer back in Tennessee. What I think I want is a 115-125gr boattail leaving at around 2800 or so fps, which (I believe) should make the round effective out to and beyond 200yds.
    Then I think you picked the wrong caliber. Because that ain't happening in any load data I've seen for .300 AAC by about 500 fps. Hodgdon's website has data for H110/WW296, Lil' Gun, IMR 4198 and IMR 4227 powders. Their data puts 110 grain V-Max bullets near 2400 fps.

    6.8 Rem SPC will get closer to that but you'd still have to drop down to around 100 grain bullets. .30 AR Remington would have been the caliber for the performance you are describing.

  5. #5
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    Found the Barnes blacktip bullets. Load data shows about 2400fps and extremely good expansion even at low (subsonic) velocities. Looks like it will make an excellent deer gun out to about 150 yards or so.

  6. #6
    Machine Gunner Colorado Osprey's Avatar
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    Barnes 2400 ft/sec with a 110 grain bullet is not legal for big game hunting in Colorado.
    Colorado requires 1000ft/lbs at 100 yards for antelope, deer and elk.

    You load is shy by almost a 100ft/lbs of energy at 100 yards.

    Finding a load for hunting with the 300 ACC is near impossible without greatly over pressuring the little case. To be legal you will need over 2600 ft/sec
    I say lets all remove the warning labels and let nature take its course.

  7. #7
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    I get that a lot of people don't actually read the first post in the thread, but in this case it would help since I specifically said hunting in Tennessee not Colorado and nothing about using it for elk.

    he furthest I've ever shot a deer in Tennessee is 200 yards, so not really sure why need anything much bigger than the 300. Poking around over on the 300 blackboards I see that hunters are taking dear between 100 /165 yards.

    Basically though, the comparison to the 30/30 cartridge is pretty good, and that round has taken every game animal in the US at some time or the other.
    Last edited by dwalker460; 09-21-2012 at 08:08.

  8. #8
    Beer Meister DFBrews's Avatar
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    You did say antelope out here which also requires the 1000 ft lbs
    You sir, are a specialist in the art of discovering a welcoming outcome of a particular situation....not a mechanic.

    My feedback add 11-12 ish before the great servpocaylpse of 2012

  9. #9
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    No antelope for me anytime soon Im afraid, did not manage to grab any tags this year. Should have mentioned that earlier, and actually starting to look like no hunting period. Doesnt look like i will get back to Tennessee with enough time to hunt this season, so the lesson learned is to plan a bit better for next season. There is a (slim) chance I will get out to TN around Thanksgiving and make late rifle season, but thats very slim at this point.

  10. #10
    Beer Meister DFBrews's Avatar
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    Sucks man I have not been able to hunt in a while either. I have had good luck with the ttsx out of my pistol as far as accuracy using h110. Have not ran them across a chrono yet.
    You sir, are a specialist in the art of discovering a welcoming outcome of a particular situation....not a mechanic.

    My feedback add 11-12 ish before the great servpocaylpse of 2012

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