Hiya Guys, I often read threads on here and people mention barrel life in relation to bullet speed. I have a .243 with a 1 in 10 barrel twist and I shoot Norma ammunition with a 75grain Hornady ballistic tip most times and the ammunition velocity is about 3200ft/sec. What sort of barrel life should I expect from it in terms of rounds through it. Also what bullet velocity would you consider to be too fast and damaging to the barrel due to the excessive speed? Sorry for the noobie questions, I'm learning.