There are only a handful of shooters on this site whom I actually believe have burned out 1 barrel, let alone multiple barrels......
I haven't burned out a 308 barrel, but I've spread my shooting out over many rifles. A jug of 748, 4064, 3031, two of H4895, two of Varget, three of RL15, two of IMR4895, and many and various one pounders. If it was on one barrel it would be a little long in the tooth by now.
