my buddy loaded up some 130gr GK for his father in-laws 270 win ten rounds ten yoties told me they all drop in there tracks. I loaded up some 250gr for my 375 ruger with 66.7gr imr-4064 i figure around 2550-2600fps haven't had a chance to chrono them yet. I plan on trying them out on a black bear this spring or a mulie buck this fall.