Hornady American Gunner 155 BTHP. It appears to be set up to run perfectly in gas guns. I have tested it in a 16" Armalite with mid-length gas system. The precision is VERY good, the velocity was moderate but I just don't care. That bullet is very effective in meat. These come in a 50 round box. It seems like Hornady is targeting AR-10 shooters with this product.
American Gunner 155 [url=https://www.midwayusa.com/product/115875/hornady-american-gunner-ammunition-308-winchester-155-grain-hollow-point-boat-tail-box-of-50][/url]