I picked up two used recurve bows and I need to know the correct string lengths for each. One is a Bear Grizzly. it is 58" overall length and 50# pull. The other one is 64" overall length and has a 42# pull. any help is apprecieated.

Typically, a recurve string length is 4" shorter than the AMO length. You can twist the string to shorten it slightly as it stretches.