If your bow is in tune (and probably even if it isn't)....a "rib" on a deer will be punched through like butter. I'm pushing just over 70FP/KE with my bow....but with the setup I'm using....if my arrows weren't flying true...that would be severely diminished. I've also killed 9-10 deer in the past season+with the rage head....and it's rare to NOT get an exit wound.

Without seeing your setup.....simply knowing your draw weight and DL doesn't tell me if you should be using these heads or not. It tells me your bow is capable of shooting them. Your setup either may not warrant it (arrow weight).....or it may not support it, though (out of tune).

If I was having these type issues.....I'd go over my head and have a professional look at my setup.

Good luck.