Choosing the Right Arrows & Broadheads for Your Hunt: A Dr. Ashby Archery Guide
As a seasoned hunter and outdoor writer, I’ve spent years researching and testing archery equipment. One of the most crucial aspects of a successful and ethical hunt is having the right arrow and broadhead combination. Specifically, understanding high FOC arrows and the principles championed by Dr. Ashby archery is paramount. This guide will delve into the science behind arrow and broadhead selection, focusing on maximizing kinetic energy transfer for clean kills. We’ll cover everything from arrow spine and weight to the nuances of Dr. Ashby broadheads and how to choose the best setup for your specific hunting situation.
Understanding Front of Center (FOC) and Its Importance
Front of Center, or FOC, is the percentage of an arrow’s total weight that is located in the front portion of the arrow, ahead of the arrow’s center of balance. It’s a critical factor in arrow flight and penetration. A higher FOC generally means better penetration, especially on tough game. Dr. Ashby archery research consistently demonstrates that higher FOC arrows deliver more kinetic energy to the target, resulting in deeper, more devastating wounds. But how high is “high”?
What is Considered a High FOC?
Generally, an FOC of 15% or higher is considered good for hunting. However, Dr. Ashby broadheads and his research advocate for even higher FOC percentages, often exceeding 20% and even reaching 25% for larger game. This is because a heavier front end helps overcome air resistance and maintain a straighter trajectory, ultimately delivering more energy on impact. Calculating FOC requires knowing the weight of your arrow components (shaft, point/broadhead, nock, vanes, and insert) and using a simple formula: (Weight of front portion / Total arrow weight) x 100 = FOC%. There are also numerous online FOC calculators available.
The Benefits of High FOC Arrows
- Improved Penetration: The primary benefit, especially on thick-skinned animals.
- Flatter Trajectory: A heavier front end reduces paradox and stabilizes flight.
- Reduced Wind Drift: More stable flight means less deflection in windy conditions.
- Increased Kinetic Energy Transfer: More energy delivered to the vital organs.
Arrow Spine: Matching the Arrow to Your Bow
Before you even think about FOC, you need to ensure your arrow spine is properly matched to your bow’s draw weight and draw length. Arrow spine refers to the stiffness of the arrow shaft. An improperly spined arrow will not fly straight, leading to inconsistent groupings and reduced accuracy. Using an arrow spine chart (available from manufacturers like Easton Archery and Black Gold Archery) is crucial. These charts take into account your draw weight, draw length, arrow length, and point weight to recommend the appropriate spine.
Understanding Spine Charts
Spine charts typically list arrow spine numbers (e.g., 340, 400, 500). A lower spine number indicates a stiffer arrow. Higher draw weights and shorter draw lengths require stiffer spines. It’s always better to err on the side of a slightly stiffer spine than a too-flexible one. Consider consulting with a local archery pro shop for personalized spine selection assistance.
Dr. Ashby Broadheads: A Focus on Cutting Diameter and Blade Design
Dr. Ashby broadheads are renowned for their focus on penetration and wound channel creation. His research, detailed in his extensive reports, emphasizes the importance of single-bevel broadheads and a relatively small cutting diameter. He found that larger diameter broadheads, while creating impressive wound channels in gelatin tests, often suffer from reduced penetration on bone and tough hide.
Single-Bevel vs. Double-Bevel Broadheads
Dr. Ashby archery strongly advocates for single-bevel broadheads. These broadheads have one primary cutting edge and a “bleeder” blade. The single bevel creates a slicing action that penetrates more efficiently, while the bleeder blade helps to create a larger wound channel. Double-bevel broadheads, while popular, tend to deflect more easily upon impact with bone, reducing penetration. However, advancements in double-bevel designs are continually being made.
Cutting Diameter and Blade Thickness
According to Dr. Ashby broadheads principles, a cutting diameter of 1 1/8” to 1 ¼” is optimal for maximizing penetration. Blade thickness is also important; thicker blades are more durable but can reduce penetration. A blade thickness of 0.035” to 0.040” is a good compromise. Consider the game you’re hunting; larger, tougher animals require a more robust broadhead.
Building a High FOC Arrow Setup: A Step-by-Step Guide
Let's put it all together. Here’s how to build a high FOC arrows setup based on Dr. Ashby archery principles:
- Choose the Right Shaft: Select a carbon fiber shaft with the appropriate spine for your bow.
- Select a Heavy Insert: Use a steel insert to add weight to the front of the arrow.
- Opt for a Heavy Point/Broadhead: Choose a field point or Dr. Ashby broadheads with a weight of 125 grains or more.
- Minimize Rear Weight: Use lightweight vanes and a lightweight nock.
- Calculate FOC: Weigh all components and calculate the FOC to ensure it meets your desired percentage.
- Tune Your Bow: Properly tune your bow to ensure optimal arrow flight. This includes paper tuning and walk-back tuning.
Broadhead Types: A Quick Comparison
| Broadhead Type | Cutting Diameter | Blade Design | Penetration | Cost |
|---|---|---|---|---|
| Fixed Blade (Single-Bevel) | 1 1/8” - 1 ¼” | Single Bevel with Bleeder | Excellent | $30 - $60 per 3-pack |
| Fixed Blade (Double-Bevel) | 1 ¼” - 2” | Double Bevel | Good | $25 - $50 per 3-pack |
| Mechanical Broadhead | 1 ½” - 2 ½” | Deployable Blades | Variable (dependent on design) | $40 - $80 per 3-pack |
Resources and Further Reading
- National Park Service – Hunting regulations and safety information.
- Leave No Trace Center for Outdoor Ethics – Responsible hunting practices.
- USDA Forest Service – Hunting information and permits.
- REI Expert Advice – Archery and hunting guides.
- Dr. Ashby’s Research: Search online for “Dr. Ashby Broadhead Research” to find his detailed reports and findings.
Final Thoughts on High FOC Arrows and Dr. Ashby Archery
Investing in the right arrow and broadhead setup is an investment in ethical hunting and a clean kill. By understanding the principles of high FOC arrows and the research championed by Dr. Ashby archery, you can significantly improve your chances of success and ensure a humane harvest. Remember to prioritize arrow spine, FOC, broadhead design, and proper bow tuning. Don't hesitate to seek guidance from a qualified archery professional to help you build the perfect setup for your hunting needs. Happy hunting!
Disclaimer: I am an outdoor enthusiast and writer, not a certified archery instructor. This information is for general guidance only. Always consult with a qualified professional before making any changes to your archery equipment or hunting practices.