Only positives with the 308, go out and get it. Let us know how it performs. The case is a proven accurate design, lower recoil than 30/06 and just plain nice shooter. I would like to get the 308 barrel added to my H&R reciever, however I believe the 308 Ultra barrel add-on is a heavy barrel and I am not so sure I want a heavy barreled 308. I believe I can get the standard handi barrel in 308, but I do not know what the finish difference is if any. You may want to check into the 'to be traded for' barrel for it's thickness and weight. However, I believe a new 308 Ultra has a standard size barrel. Why only an Ultra 308 'heavy' barrel is listed on the add-on site, I do not know? Good Luck, BuzzKill.