Hey all, I finished my latest project last weekend, building two PA-10s in 308. I made the mistake of going with Palmetto State Armory barrels - specifically their 18" 308 midlength stainless steel barrels. I wanted to post this up to give you all a warning to heed if you're building a rifle and expect decent accuracy. I gathered a variety of ammunition to shoot through the rifles and one good thing is that they function fine, albeit with a lot of recoil which will be mitigated with adjustable gas blocks when I rebuild the uppers with the new barrels. Here are pictures of the best groups of the day: The first picture is using Federal Gold Medal Match with 175gr SMKs. The second is Prvi Match with 168gr HPBT. They measure approximately 3.5". The target with two groups was where I shot a group, zeroed (as much as you can from a group like that) and shot another group. Other groups with both match and non match ammunition were in the 5-6" range. Is this normal for Palmetto State Armory barrels? I have friends with 556 PSA barrels that (they say) shoot great, and I've seen good performance out of them on YouTube. Personally I hold any rifle to a higher standard than 3 or 4 MOA. I contacted Palmetto in an email Saturday night expressing that this performance is unsatisfactory to me, and I've not heard back. Hopefully I will, and if so I'll post back here. I'd love to hear that this was just a bad batch and they'll refund me, but I won't hold my breath. In the mean time, anybody have any luck with Rainier Arms' 308 barrels?