40lb max pull?! Surely you jest!
I had a 35lb bow when I was a kid, and could put an arrow through a telephone book...as long as it had a hunting tip.
Lighter bows are more accurate....however theres also the question of velocity and reaction time.
If you watch videos of deer hunting on youtube you'll notice that the animal jumps as soon as the release is heard, so having a fast arrow can be important.
http://209.85.165.104/search?q=cach...lbs&hl=en&ct=clnk&cd=1&gl=ca&client=firefox-a
You’re hunting with THAT?
"How would you feel if someone told you that you’d never be able to hunt elk with a traditional bow? That you’re incapable of killing a bull moose, or a wild boar and that an African kudu is beyond your abilities?
From magazine articles, archery shop advice, and friendly opinions many women hear “You can’t kill an elk with THAT.” “THAT” is a woman hunter’s recurve or longbow. It usually pulls between 40 and 50 pounds at 23 to 26 inches of draw. It’s usually of insufficient weight to legally hunt moose or elk in Alaska and Wyoming, to satisfy modern bowhunters who like to see heavy bows shooting light arrows or to join the Professional Bowhunters Society as a regular member. But with proper set-up and careful shot choice, it’s capable of killing a big animal more effectively than a 60-pound compound shooting light arrows and mechanical broadheads.
Vic Berkampas, 61, believes in light bows. He’s been bowhunting with traditional equipment since 1959 and has owned Vic’s Archery in Grandeville, Michigan for 30 years. He likes to hunt with the lightest bow he can—ideally 45 pounds—because he’s more accurate. And Berkampas has found that lighter bows can be effective.
Since most states and provinces have legal bow weight minimums of 40 pounds to hunt big game (although some are less), Berkampas and his wife Linda, 51, have tried their equipment at game farms to provide solid evidence of light bow performance.
“We’ve done a lot of testing on wild boar ranges where you’re not held so much to game laws and you can actually experiment with light poundage,” says Berkampas. “I was down to a 32-pound bow and still shot through them…I shot [a boar] with a large 3-bladed broadhead (to try to minimize penetration). I hit ribs going in and out and it wasn’t any problem.”
Berkampas has also killed cow elk with 45-pound and 40-pound bows. He has a 29-inch draw, which gives him a longer power stroke than most women have, and therefore more force when his arrow hits. His wife, Linda has a 26-inch draw. Four years ago, she shot through a 325-pound wild boar with a 33-pound Black Widow recurve. Berkampas recalls that other hunters on the same hunt, shooting 65-pound and 70-pound compounds, weren’t getting even half way through a boar."