Been shooting my 6.5-06 for a few years now. The barrel is an E.R. Shaw 24" light sporter weight. Stainless with 1/8 twist. It shoots accurately any bullet weight I have shot threw it from a 100gr Sierra HP to a 140gr. The primary bullet I shoot because it penetrates so well on elk is the Barnes 120gr TSX. Safe in my rifle , CCI LR primer, 53.5grs IMR 4350 , Win brass , 3277 fps. Gets to my 522yd target right now & dead center. Super accurate, with excellent case life. I use once fired 25-06 brass necked up. A super economical cartridge to shoot. Same performance as the 6.5-284, 6.5 Rem mag & 6.5 PRC. Never ending supply of economical brass as you can also neck down 30-06 . You of course you should get the same results from other reliable barrel companies.