Broadhead question

[tlbradford]

I had a guy tell me his reasoning behind using a two blade.  If the arrow remains inside the animal, a two blade will move back and forth with the animals movements and continue cutting a wider and wider wound channel.  A three or four blade head would not do that.  He also stated that on a marginal shot with poor penetration, one that hits bone, or is deflected off a branch, whatever, the two blade will gradually work it's way out of the animal rather which would increase its chances of survival.  It makes sense to me, but I don't have any tests to reference.  The only downside to a two blade is that they can plane badly.   

[STIKNSTRINGBOW]

16.  Game animals have reflexes faster than even the very fastest of arrows.  No archer can guarantee where his arrow will strike an animal.  I concur with Horace Gore.  In bowhunting, shot placement is, for practical purposes, random.

That is the reason for the acceptable shot distance controversy, the further an animal is away from you the more time they have to react to the sound of the shot. No matter how fast or quiet your bow is it will still be heard before the arrow gets there. Everything changes when it has hair and a heartbeat....Try holding still when your legs are shaking from "adrenaline Overload"! The day I quit getting excited before the shot is the day I will find a different sport. I pass on more shots than I take and (so far) have a good shot:recovered animal ratio because of self imposed limitations.

[halflife65]

Do you know that date of the report?  Also, what multi-blade broadheads were used?  I find it a little alarming that they were breaking when hitting bone.  I've missed the a foam target with a G5, hit a rock, cracked the arrow and, although there was a notch out of it, could screw it back on to a new arrow and use it (for practice not to hunt with).  I'm surprised that a large percentage of them were breaking when hitting bone.  I want to make sure that I never use a weak one...

[Ray]

The report says what broadheads were used. It also says what kind of bows he was using and things like that. Considering the date on the copyright is 1996 I would assume it is 1996 or older. Apparently he spent 12 years collecting data and doing research to come up with some of the conclusions.

You have to ask yourself is what he says important to me and also if the broadhead design you are using much more technologically advanced between then and now?

[Ray]

Forgot to point out he has made more recent reports on tradgang

[bow4elk]

For the most comprehensive data on the subject of penetration testing, see Dr. Ed Ashby's or Dave Holt's work.  Both have spent years conducting broadhead penetration tests on "real" animals/carcasses.

[Ray]

This is Ashby's work in the links above.