if it shoots an arrow past your feet its strong enough
actually after youve made afe wbows you can get pretty good at gguessing draw weight.
most bows i have made have been from 45-55 lbs,now i can get close enough to that during tillering,the last bow i made never even seen scale
i would say that one shhots about 45lbs.the one i am making now dodnt even get any long string tillering,all floor tiilering untill i could get it braced(just as an experimment)tiller looks good so far too.i'll bet that at the 16" its pulling right now its at about 65lbs