I have been shooting my first ar10 build for a wile now. It's a hodge podge of good parts, can't remember what they all are. What I do know, is my chrome lined m118LR Criterion barrel just doesn't cut it for me anymore. I can get about 1.5" groups, but I'm doing more precision rifle stuff now, and 1.5" definitely doesn't cut it anymore. It's 18" and even suppressed seems to have a decent amount of pop. I'd like to go smaller, like 7-08, 260, or 243 as I load for all of them already. I'm looking to get 20-22" and have been looking hard at christensen and proof carbon to shave weight. Has anyone had any experience with these carbon ar10 barrels?