I have got a 300 winchester Mag sporting a 27 inch Lilja that is capable of very good accuracy, (for whatever reason this gun has high barrel speed). It have been putting out 180 grainers at 3267. It has been putting out the 210 grain Sierra's 2943. I am pretty sure I can get about 28 with the 230 grain Berger, the main difference is 719 BC for the Berger and 645 for the Sierra. Anybody got any ideas on which would be a better long range bullet for this gun?