Considering next chambering for varminting and wanted to consider the 6x47 Lapua. I primarily shoot ground squirrels,from 100-300) yards and 6BR has proved king for me so far,excellent barrel life, accuracy and ballistics). But I like the idea of gaining a couple hundred of FPS over the 6BR, so long as my barrel wont completly burn out after 1500 rounds,like a .243 AI). I have found that with a couple re-crownings mixed in, I can expect 5K-6K of accurate shooting from a 6BR,55s at 3,750 - 3,825 fps). Can anybody speak to the barrel live of the 6-6.5x47 for this kind of use?