I can only comment on the DD 16" NON-CHF barrel alone, as I shot it from a free float and not a complete DD rifle. However for just the purposes of the barrel....
When I first built my SPR, I was waiting on the 18" Noveske barrel. While I was waiting, I had dropped in the NON-Hammer forged, DD 16", 4150, chrome lined, 1:7 barrel. Out of a free float, I was getting just under 2MOA with a fixed 10X using Federal TRU 55gr Hi Shok SP ammo. I never did run a heavier grain match type of ammo out of it, but I am sure I coulda easily cut the number down to 1.5MOA or better.
On a side note when I swapped the same rifle to the 18" Noveske SPR 1:7 barrel the numbers dropped to sub MOA with the Federal 55gr TRU ammo and Sub .75MOA with 75grain Hornady Tap and 75 grain Black Hills, with the smallest of all the groups fired (4 round group) being under .5 MOA.
So IMO, all in all as far as the DD barrel goes, it performed very well.
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