I'll take a stab at this one. I've bowhunted for 16 years, and shot pro-class 3-D for 4 of those. Most bowhunting is either treestanding or ground blind. Usually, you set up over a trail between a bedding area and a food source that's seeing action. Your effective range is where you can guarantee a hit in the heart/lung zone. You don't really aim in any different place than with a rifle, but you have less leeway on marginal and tough angle shots. Slightly quartering away is the money shot, a good arrow with a reliable broadhead, in the lungs is the best bet.
Nowadays, there's a lot of hype and marketing associated with speed. Speed is good, as long as it's quiet. At 20yds, an arrow needs to be traveling over 350fps to beat a deer's reflexes and I guarantee you, that ain't happening! You need enough arrow mass to ensure a good, clean kill, and a heavier arrow will quieten your bow, too. That said, I'm gettin' on my soapbox......Use 8-9gr/lb of draw weight as a starting guideline. This will give a 560-630 gr arrow for a 70# bow. Sounds heavy and slow, right? I can tell you, it'll be quieter and you'll get penetration you wouldn't believe....... Gotta go to dinner, I'll resume my rant later
Kevin
Nowadays, there's a lot of hype and marketing associated with speed. Speed is good, as long as it's quiet. At 20yds, an arrow needs to be traveling over 350fps to beat a deer's reflexes and I guarantee you, that ain't happening! You need enough arrow mass to ensure a good, clean kill, and a heavier arrow will quieten your bow, too. That said, I'm gettin' on my soapbox......Use 8-9gr/lb of draw weight as a starting guideline. This will give a 560-630 gr arrow for a 70# bow. Sounds heavy and slow, right? I can tell you, it'll be quieter and you'll get penetration you wouldn't believe....... Gotta go to dinner, I'll resume my rant later
Kevin