i have used powerbelt bullets for years. i used to use 150 grain powder and killed a lot of deer. but was unhappy with the bullet frags(huge entry holes, lots of damage and no exit hole or bullet found). i read on this site to reduce my powder load to 100 grains this year. i shot a doe early this year in the "motor dept".bullet passed through the heart and exited the rib cage. last night i shot a nice doe just before dark @ about 65 yards. the deer ran off after the shot, like they ussualy do with a good heart/lung shot.when i got to the spot where i shot her i found hair and a little peice of bone. at 30 yards i found another peice of bone and a small fragement of my bullet, but little blood. at 50 yards i started finding blood and bone fragments.at 150 yards i found a 4" peice of rib bone. i found all this on the left side of her track( i shot her on the right side), the bullet had to pass through right?. well to make a long story short , we tracked it over a mile(with some good blood) and lost her in the middle of a bean field. if i hit this deer in the ribcage how could this deer be alive? im stuck using this powerbelt bullet for the rest of the season. should i change bullets next year or was this a fluke thing?