Dr Ed Ashby
Regarding our chosen hunting tools, the ultimate details involve the effect
of the arrow and broadhead as a unit upon the target animals. In this area
the most unquestioned and thorough studies have been examined by Dr Ed
Ashby. His works on the effects of broadheads on game animals are
comprehensive, and well documented. They are, while technical, easy reading
and we encourage you to take the time to go through them. They are the
reason that we embarked on the Tuffhead™ project.
Dr. Ed Ashby's Lethality Studies are listed here in pdf and chronological listing
As you come to understand the factors that Ashby considers, and begin to explore
your own equipment in light of the details he proposes, you will
these Archery Formulas as a basis for
comparisons of equipment. They each relate to every form of hunting with
a bow and as you come to understand each of them, you will realize, as we
did, that the Tuffhead™ will meet your every need.
In January 2012, Dr. Ed presented a discussion at the Traditional
Bowhunters Expo in Kalamazoo Michigan on the Ultimate Hunting Arrow,
What You Need to Achieve It, and the facts you need to know to back it
up. With Dr Ed's permission, the program was recorded and Dr Ed provided
his slides to accompany the audio. This series provides a
very interesting and easy to understand follow-up to his many studies on
arrow performance available elsewhere on this site. Set aside an hour or
two and listen to what Dr. Ashby has to say...
We have broken the Kalamazoo Presentation down into 20 video clips that you can watch embedded videos from the third link on the menu to the left or Click This.
Troy Breeding and Tuning the EFOC Arrow
Troy Breeding participated with Dr Ashby at this seminar and discussed tuning your arrow shafts for efoc and uefoc arrows. His portion of the program can be found in clip 20 of the video series and in more detail in our reference room to the left under "Tuning the EFOC and UEFOC shaft".
KingWouldBe and examples of Ashby type Broadhead Penetration
A new autopsy and an instructional video and discussion by David DeVille on a recent hog killed with a TuffHead 300. Included are comments by Dr. Ed. Read More...
If you are beginning to work on tuning your arrow shafts or are embarking on heavier arrows, you probably have ever heard of the Archer's Paradox, and possibly not gotten a clear understanding of this issue. This link to our single bevel broadhead website goes into some detail on the issue and also links out to other sources.
Basic Anatomy -
With a good knowledge of the equipment side of archery in place, the better you
better hunter you become. We do not claim to
be the end all source for the biology of game animals, but in this
anatomy images folder we endeavor to
provide some basic anatomy information on some aspects of popular archery game
We'll add to this area as we can.
North American & African Big Game Anatomy Images
- Dr. Ed Ashby and his Broadhead Lethality Studies
- Ashby .pdf's
- Ashby Jan 2012 Kalamazoo, MI
- Game Animal Anatomy
- Archery Formulas
- Selecting the Bevel
- Edge Maintenance
- Tuning the EFOC &
- Single Bevel Discussions and Opinions
Links of Interest