I made a 72" bamboo-backed hickory pulling #45@28"
with 2 1/2" of total set. I am shooting 550gr cedar arrows tiped with Grizzly 160s'. My question to all of you is is this enough for whitetail under 20yards? Yes I know there are a million varibles that were not adressed so if there is a problem you can see that I may have overlooked please feel free to imput your suggestions.


Good luck all this season,
Danny

yes no problem as long as you do the right thing and put it  in the sweet spot. i shoot only #45 bows as well and dont have a problem with taking deer goats or any thing i might want to eat.      

Weight at draw is only one of the things that determine effectiveness.  With that long of a bow and that much set, I'm concerned you might have a sluggish shooter.  Honestly, it seems something has gone wrong in design, construction, tillering, or material choice.

Does it shoot hard?  Have you flight tested it?  Do you draw it the full 28"?  Can you shoot it well?  It'll likely do the trick on whitetail but those variables you mention can really mess things up.

p.s.  A selfbow is one piece of wood (or other material) from end to end and front to back.  You have a composite or backed bow there.

with that bow you may want to use a 100 gr head two blade and make sure the arrow is going straight, not flying sideways to the target

Pike that sucker.

The problem with piking an already damaged(set)bow is that you add more stress to an already overstressed bow and you can cause more(or worse) damage.   Pat

If you shoot it well, and get really good arrow flight, I would think you would be fine on whitetails.  I'm sure our ancient ancestors have killed deer with much less.

I draw it to 27". I have flight tested is and get 120-125 paces(yards).It hits wth a reasonabe amount of power and the arrows fly well and hit where they need to 90% of the time.

You'll be fine.  Make sure you know how far you can shoot your first arrow in the kill every time.  I'd not shoot much over 15 yards with a bow pulling 40# or so.  But that's just me.