Ashby Lethality Studies
The complete collection of works by Dr. Ed Ashby
on broadhead penetration and arrow lethality.
Forward of Center (FoC) Chart
The chart to determine what percentage of your arrow weight is forward of center.
Broadhead Performance
Broadhead Performance
Introduction and the Need for Knowledge
Arrow Lethality - Part 1
Broadheads
Arrow Lethality - Part 2
Turning Hits into Kills
Arrow Lethality - Part 3
The Physics of Arrow Penetration
Arrow Lethality - Part 4
Predicting Arrow Penetration on Real Animals
Arrow Lethality - Part 5
Broadhead & Arrow Lethality Study Update, Part 1
2004 Updates - Part 1