Hey i am going to build a 375 cheytac in a couple of months. I have chose to have lawton build the action, barrel and muzzle break. I am going to use a Manners tactical stock, Kepplinger set trigger and Nightforce 5.5x-22x scope. I have read up on the Serria matchking 350 grn bullet and the guys at Lawton told me that Racky Mountain bullet company was building a 350 grn or bigger polly tiped bullet. I am not getting an oversized barrel so i can't shoot solids so i will use the serria and rocky mountain bullet. I had some questions about the Barns 300 grn tripple shock. I use them in my 375 h&h mag and they seem to work good. Max range i have shot is 200 yards though. Has anyone used the barns bullet for long range hunting? Does it hold up to ranges out to 1500+ or is not designed well enough for that? Thanks for the help. Jason.