i assume you are looking at a compound bow with substantial let off. a traditional bow at even 45 pounds is going to be a tough shoot.
i think the compound bows come take down but i have not used one.
generally a modern bow with eliptical cams isnt that hard to draw and hold even at 60 pounds or so.
getting close enough to hit something, and doing so. thats another story.
And that’s the deal breaker right there.
Even if he makes it past the cams, he has to have enough reserve to hold the thing steady, even though the pull will be less at that point.