Range Report: Diamondback 18" Mid length upper

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  • Jeepster18_88
    Warrior
    • Feb 2019
    • 149

    Range Report: Diamondback 18" Mid length upper

    My INITIAL shots were with the Hornady SST factory load and very disappointing. I had placed 6 sheets of paper making two Rows three wide. I couldn't get 3 shots on the same piece of paper. This was the same issue that I had with the BCA 24" upper. Then I switched to Wolf firing 5 shots into about 2.5" group. 3 touching with 1 high and right, the other high and left. Much better than the BCA did. I had waited to try the Hornady ELD match ammo because I don't have much and didn't want to waste it during "break in" which is really just my first shots (I don't bother with a proper break in procedure). The wind picked up and I rushed 5 shots under 2". Then I slowed down and shot 2 more 3 shot groups of the SST load which were around 8" each. I adjusted my scope off the earlier groups and another Wolf 3 shots ended up putting 2 touching and the 3rd landed about 1 1/4" off to the left. Finally, I shot 3 of the ELD match and had under 3/4" group. Just to get a little more brass, I fired a few more SST and again, couldn't keep them on one sheet of paper.

    I'm 100% positive that I can get sub MOA 10 shot groups with this upper, and I am pretty sure that I can get at least decent groups with the SST by handloading. I've never had a Hornady bullet that I couldn't make fly right, but the factory load is by a huge margin, the absolute worst shooting ammo of any kind, any caliber, in any gun. We've all experienced a flyer now and then, but every single shot was a flyer in some direction and no two of over 20 shots were anywhere near another.

    I would definitely recommend someone that is considering a BCA or other budget upper to consider Diamondback. It doesn't like the SST factory load, but it is shooting much better than the BCA with wolf and ELD-M loads. While BCA is trying to figure out how to fix their upper, I'm going to be hunting with my Diamondback.
  • A5BLASTER
    Chieftain
    • Mar 2015
    • 6192

    #2
    Great start.

    Me personally I wouldn't even bother with the sst in a handload if it's shooting that bad from a factory round.

    Much better game bullets on the market then the sst anyway.

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    • 1Shot
      Warrior
      • Feb 2018
      • 781

      #3
      Neither of my rifles that have different make barrels like the 123 SST bullet no matter what load tried. 120 Sierra Pro Hunter and Speer Gold Dots shoot great in both. I am using IMR 8208.

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      • Jeepster18_88
        Warrior
        • Feb 2019
        • 149

        #4
        I had already bought 3 boxes of factory SST and another hundred bullets to reload with so I'm still going to give a little effort. The SST is a great performer out of the 7.62x39 and ML so it's worth wasting a little powder, but who knows if I can get anything. It's strange because it appears to be almost identical externally to the other Hornady bullets that shoot fine. There has to be a reason for them shooting so horribly but I haven't looked into it. I'm not really worried about it though because during shooting, the ELD match bullet showed to retain weight better at 100 yards and I have a hundred to load as well as a bunch of 90gr TNT. I have some Sierra 130 BTHP but it looks like they may be discontinued. I'll pick up some 120 PH soon and give them a chance. Thanks for the heads up.

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