03-16-2012, 02:00 PM
You may look into 6 x 45 caliber: 223 brass, requires only a barrel change, about 30% more energy than 223, same powder charge as 223, heavier bullets, super accurate, amazing barrel life, cheap to reload, same magazines, increased velocity. In case you want to hunt beyond 300 yd then 6.5 Grendel. Just my opinion.
