I have 55# samick sage bow and it shoots great. However, my younger brother who is 13 cannot even come close to pulling it back far enough for him to properly shoot. I highly suggest getting a lower set poundange. If he ever out grows the lower poundage just buy new limbs for the higher poundage. If he struggles too much when he's first starting out he may get discouraged and lose interest. Becoming accurate with a recurve is already a difficult task so I would start out with a 40# maybe a 45# so your son isn't getting overstrained and he can learn good form. As a side note, the sammick sage is a perfect begginner bow its not the most beautiful thing but it is built well and is more than capable of getting any job done that you ask of it.