You can bench 500lbs and not pull a 50lb compound back!! Benching, lifting weights, etc, your using different muscles then when pulling a bow back. Back in high school I lifted weights and was pretty good. I weighed 160lbs and was benching 300lbs. Buddies of mine were putting up 350lbs and were much bigger then I and they couldn't pull my 55lb compound back. I was shooting bows since I was 3 years old. These guys were not.