I bought a brand new Ruger M77 V in around 1979/1980. Started loading for it and to my delight, found it to be superbly accurate, particularly with two loads. The 52 grain Sierra and 40 grains of IMR 4064, or the 55 grain Hornady and 43 grains of H380. Over the next few years, I shot 2500 rounds through that barrel without noting any appreciable loss of accuracy. I did not shoot it "hot" and claened it carefully, using a good bore guide. Somewhere between 2500 & 3000 rounds, it started to open groups slightly. I seated the bullets out a bit more & it tightened up again. Finally at 3000+ rounds, the accuracy was unacceptable, and I sold it to a guy who was happy with 1½ moa in a varmint rifle. I have in my gun safe, another, recently purchased,[Estate sale, unfired] early production 77V Ruger that shoots just like the original one did, but, at this point only has about 300 rounds down the pipe. I expect a long and enjoyable relationship with this Swift also. Barrel burners? Yes, I guess so, but not as bad as many would have you believe. Mind you, if you insist on shooting it till it cannot be held in your hand, barrel life will indeed be short. Regards, Eagleye.