To enhance the accurracy of any AR-STYLE rifle, you first must know your rate of twist in the barrel, 1-7 handles 55gr, 1-8 handles both 55gn and 62 gn, from here you will elect to have a target crown installed, throat and polish the feed ramp and open up to a M-4 style feed ramp, this will aid in less bullet deformation while shooting soft pointed rounds and h.p., next is have the trigger honed and trued, I
like to keep them in 3.5lbs area when I rework stock trigger and hammers.
Next the free float tube does what it say`s it removes any and all forward pressure from the barrel allowing it to go thru its harmonic`s, keeping ridge at the receiver.
And abve all good quality ammo, the guns that are shown in the magazines with group sizes .5 moa , they top quality match ammo.
ACTIONS BY R.A.K.
DEANS GUNSHOP II
I would also suggest getting rid of the barrel if it is crome lined. Crome lined barrels increase barrel life, but usually decrease accuracy due to the inability to get a perfect unifored lining in the bore. I have a DPMS 16" SS bull 1-8 twist grouping .50 " 5 shot groups @ 100yrds using 55 gr hornady v-max bullets.
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