I have a partial box of the 200 gr core lokt loads. Have yet to use them on game, only steel plates. I have my rifle dialed in for them as my plan was to use them up before I use anymore of my “good stuff “ which is Speer and Hornady 250’s. I’ll see how they work hopefully shortly as I clean up my tags in late doe season. I’ll keep you posted on my experience. The Speer and Hornady slugs are flawless.