.260 remington...
For those who suggested them, neither .243 Win nor .260 Rem are AR-15 compatible calibers.
I'd probably suggest 6.5G based on the part of the state you're in and the likelihood of shooting at 300+ out there.
Lets talk.
Super exotic.
You might consider the 25-45 Sharps. It's capable of 3000 fps with an 87gr projectile, furthermore it's just 5.56NATO brass literally only necked up to accept a .257 caliber projectile, so it requires no specialized parts other than the barrel. With pills ranging from 55gr-100gr being manufactured for all kinds of different purposes, there's a lot of versatility to be had from that round. Barrels are available online through distributors, or directly from Sharps, as are reloading dies. If I could afford a "specialty caliber" AR, this is the caliber I would choose
.223 Works fine for me. I've killed a dozen or so deer with it. None ran over 40 yds without expiring.6mmAR is the correct answer!!!
http://www.6mmar.com/Page_1.html
On the other hand - if 223 isn't "working" in AR-15 - AR-15 is your problem, not 223.
Enter your email address to join: