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Grendel65 · January 24, 2012, 10:22 PM

I have about 7000 rounds down 5 different Grendels. Most on my first, 19.5 inch barreled rifle.

All of them have shot very well, with groups in the sub .5 inch range with the preferred bullets in each.

I agree with David Fortier, I can find no reason whatsoever for a .308 in an AR, since I have Grendels. I might be able to find a reason for a .260, but not a .308.

At shorter ranges, the heavier .308 bullets have some benefit, but once you get to 500-600 yards, there is minimal difference.

As for ammo cost, if you shoot surplus ammo, the .308 is cheaper. BUT...most people on this forum aren't looking for volume, but instead for accuracy, and so they will be paying roughly the same cost for ammo. In fact, to match Hornady Factory Grendel ammo in accuracy actually cost more to buy .308!

The truth is that all the ammo will run in Grendel chambers, and most of the variant chambers as well.

With SAAMI approval now, most people will use the SAAMI chamber.

January 24, 2012, 10:22 PM	#16
Grendel65 Member Join Date: December 23, 2011 Posts: 16	I have about 7000 rounds down 5 different Grendels. Most on my first, 19.5 inch barreled rifle. All of them have shot very well, with groups in the sub .5 inch range with the preferred bullets in each. I agree with David Fortier, I can find no reason whatsoever for a .308 in an AR, since I have Grendels. I might be able to find a reason for a .260, but not a .308. At shorter ranges, the heavier .308 bullets have some benefit, but once you get to 500-600 yards, there is minimal difference. As for ammo cost, if you shoot surplus ammo, the .308 is cheaper. BUT...most people on this forum aren't looking for volume, but instead for accuracy, and so they will be paying roughly the same cost for ammo. In fact, to match Hornady Factory Grendel ammo in accuracy actually cost more to buy .308! The truth is that all the ammo will run in Grendel chambers, and most of the variant chambers as well. With SAAMI approval now, most people will use the SAAMI chamber.