Most of my loads are flat base bullets.Never had to shoot much over 100 yards.Have some 150 grain RN corelokts loaded in the 308 and they are some real thumpers.Thanks will get a box of GK's and wring em outLol good to hear!! I really love the sierra gamekings. I use 180 grain GK SPBT in my 308 for both match and hunting loads. I did a lot of load development work with them so I wanted to be able to use it for both.