Discussion in 'Rifle Country' started by JBrady555, Jan 22, 2015.
In the order i would prefer for serious 600 yard AR work.
DPMS GII .260
6.5 Grendel AR15
edit: if you want to shoot F-class and stay F-T/R class, you will need to stay in .308 or .223. All other calibers are open class in F-class. Most of the very good open class shooters i've seen shoot 6mm BR bolt guns or similar.
There is nothing in that cartridge length that shoots flatter in my opinion.
They make a 6.8SPC II upper that might fit your criteria. I have their 223 20" varmint upper that is much more accurate than I am. Really challenges me to practice more and really see what the gun is capable of.
IF you want carbine length, the 6.8 has less muzzle blast and the performance will be pretty similar (between 6.8 and 6.5) out of the shorter barrel.
Honestly, up to 300 yards or so, performance is comparable regardless of barrel length. After 300ish yards, the 6.5 is pretty clearly the ballistically superior of the two.
With either 6.5 and 6.8, you'll need a dedicated bolt and mags.
What barrel manufactuer did you use?
Edit: I do have the 18" barrel which I decided on because I hunt with it and have found it to be a good size for the woods.
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