That is why i got a 338 Lapua I am 76 years old stove up like a mofo I dig in up on a mountain and send em to the valley .... but I wish I was young enough to do this....
there are lots of sets of big balls in Idaho the new sticker going around is this guy and it says Idaho shoots back... he saved a lot of folks him and the off duty cop who also ran to the gunfire Hats off to these two...
you need a bigger bullet when you use copper bullets example a 168 is how big you need to get the equevelent of a 150 and I can tell you speed it NOT what you need you need accuracy and energy both of which a 168 ir way better that a 150 in 308 history 168 and 308 are like peanut butter and jelly . I have many one shot elk kills dropped in their tracks at ranges over 300 yards and I get the accuracy of less than 3/4 of a inch at 100 yards can your 150's do that? just buy a box of the barnes 168 TTSX 20 hunting rounds will last you years!
For those looking into going long don't forget to get enough dial up for the distance you plan to try, we saw this last year many tried the 2905 but could not dial up to try it and Kentucky windage ain't cutting it at those distances... if you need help just holler out here but get prepared this year will be EPIC........