I guess I will pitch another log on the fire with my core-lokt story. First experience, I had nice heavy(183 pound dressed) 8 point run underneath my treestand and stop. I shot him in the back of the neck with a 7mm magnum, 140 grain core-lokt. Yep dropped him in his tracks, but I found dozens if not hundred pieces of lead shrap metal through out the body. Given the shot was about 12-15 feet with a magnum, I guess that makes sense. My second experience was not that great. The following year, same tree, rifle, and box of ammo, I shot a doe at 40 yards. At the shot, she finched and ran off. My dad with his 22/250 shot her in the neck about 80 yards down in a draw and dropped her. After I went down there and told dad what happened we examined the doe. Yep, My shot was right though the boiler room. The entrance and exit wound were the size of a PENCIL. Very little damage to any organs where the bullet past through. I know other guys have had great luck with these. For me, there is better things for the job. I like Hornady SST. I have used these in 30.06, 300 Win mag, 300 Saum, 243, and 270. I have NEVER had a deer hit GOOD with these take more than two steps. With that and dollar you can a good cup of coffee.