THIS ADVISE WILL BE CONTRARY TO ALL THOSE MAGAZINE ARTICLES THAT TELL YOU TO GO WITH THE HEAVIEST BULLETS YOU CAN...I SPEAK FROM EXPERIENCE, AS WE BUTCHER OUR OWN DEER SO THAT WE KNOW HOW BADLY THE BULLETS FRAGMENT...I HAVE USED HORNADAY INTERLOCK BULLETS SUCH AS THOSE FOUND IN HORNADAY LIGHT MAGNUM AMMO...THEY ARENT A BAD LOAD AND ARE A QUIK KILLER...HOWEVER,SIERRA MAKES A 85 GRAIN HOLLOW POINT BOAT TAIL BULLET ...GAME KING..THAT I HAVE SHOT DEER IN THE SHOULDER WITH THESE AND DOWN THEY FALL..THE BULLET HOLDS TOGETHER WELL, WITH LESS FRAGMENTATION ON AVERAGE THAN THE HEAVIER INTERLOCK BULLETS...I KNOW I AM LETTING MYSELF OPEN FOR A LOT OF CRITICISM HERE,BUT I SPEAK FROM MY OWN EXPERIENCE...I CALLED SIERRA SEVERAL YEARS AGO, AND THIS IS THE BULLET THEY RECOMMENDED FOR DEER...I HAD MY DOUBTS ABOUT THEM MYSELF...BUT THE PROOF IS IN THE PUTTING..EVIDENTLY THESE BULLETS ARE MADE OF A TOUGHER MATERIAL...I ALSO TRIED WINCHESTER 100 GRAIN POWER POINTS,AND THEY WERE TERRIBLE..MY DAUGHTER SHOT A DOE ,PERFECT SHOT ,AT 50 YDS...AFTER MUCH HUNTING WE FOUND IT ,ABOUT 300 YDS AWWAY WITH A SURFACE WOUND IN THE RIBS...NO EXIT HOLE...SO MUCH FOR THAT 100 GRAINER...GOOD DAY!