Ive never had a problem with any ammo I use in my .243, Ive killed whitetail, axis, hogs , javeline. Even using the crappy core-lockts. I took an axis at over 300 yds using the core lockts and it went right through and he went down within 40-50 yds. just dont understand what others are saying about the .243, I never have had a problem. I do like the factory hornady ammo and federals in the sierra gameking's. Have had better results using this ammo over core-lockts even though i havent lost an animal with any ammo, It's just that i had two deer that I didnt get a pass through on, and that was using the core-locts on both occasions. One was a neck shot the other was a body. While the hornady's blow right through deer and big hogs.