I dusted off my other 5.56 today. It is a humble Armalite that originally wore a 16" tube, that was quite inaccurate. I then bought & installed one of Armalite's 20" heavy barrels. It shot extremely well, but I have not shot it a lot until recently. It's now wearing a 16x42 SS SWFA. The load is the 77 TMK, this time over 24.5gr of Varget and Federal 205M primers. I'm pretty happy with it:

The setup

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The range (yes the same one as last time, I was even at the same bench)

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I was pleased with the group. I suspect this rifle can outshoot me without much trouble. The barrel is a 1 in 8" twist, but it still did well with the 77 Sierras:

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First group .77", 2nd one .87", average .82".

I shot the same load in the Daniel Defense Mk12. It did slightly better than last time, but I still need to work on my technique with it.


"...the designer of the .270 Ingwe cartridge!..."