Lately I’m using a Ruger Hawkeye in 223, with a Vortex Viper PST 4-16. I used to shoot only the 40 gr Ballistic Tip, which does evil to coyotes. The only problem was that every darn time I went coyote hunting, pigs would show up instead. So I switched to the 65 gr Sierra GK, and I have been knocking down those pigs. That Gameking bullet has flat impressed me.