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 penetration and ensuring a quick, humane harvest. We’ll cover everything from arrow spine and weight to the nuances of Dr. Ashby broadheads and how to tailor your setup to your specific game animal and bow setup.
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 balance point. It’s a critical factor in penetration, especially when dealing with tough game animals. High FOC arrows, generally considered to be 15% or higher, deliver more energy on impact. Why? Because they behave more like a dart, resisting deflection and driving through tissue more efficiently. Dr. Ashby’s research, extensively documented and respected within the archery community, strongly advocates for high FOC percentages for optimal penetration. (Ashby Archery)
Calculating FOC is relatively simple. You’ll need a digital scale to weigh the components of your arrow:
For example, if your arrow weighs 400 grains and your broadhead weighs 100 grains, the calculation would be (100/400)
100 = 25% FOC.
Before diving deeper into broadheads, it’s essential to understand arrow spine. Arrow spine refers to the stiffness of the arrow shaft. Selecting the correct spine for your bow’s draw weight and draw length is crucial for accurate flight. An arrow with insufficient spine will flex too much, causing it to fly erratically. Conversely, an arrow with excessive spine will be too stiff and can lead to similar accuracy issues. (REI Expert Advice on Arrow Spine)
Arrow spine charts, available from arrow manufacturers like Easton and Gold Tip, are your best resource. These charts consider your bow’s draw weight, draw length, and the type of point you’ll be using. It’s always best to err on the side of slightly weaker spine, as a slightly weaker spine is generally more forgiving than a spine that is too stiff. Consider consulting with a local archery pro shop for personalized spine recommendations.
Dr. Ashby broadheads are renowned for their focus on penetration. Dr. Ashby’s extensive testing, involving hundreds of hours of shooting into various targets and animal carcasses, led him to develop broadhead designs that prioritize cutting diameter after penetration. His research demonstrated that a smaller diameter broadhead, coupled with a heavy arrow and high FOC, consistently delivers deeper penetration than larger diameter broadheads. (Leave No Trace principles should always be followed during any testing or practice.)
While Dr. Ashby doesn’t manufacture broadheads himself, his designs have been adopted by several manufacturers. Common features of these broadheads include:
While Dr. Ashby’s designs are highly effective, it’s important to understand the broader landscape of broadhead types. Here’s a breakdown:
| Broadhead Type | Description | Pros | Cons |
|---|---|---|---|
| Fixed Blade | Blades are permanently attached to the ferrule. | Reliable, durable, excellent penetration. | Can be less aerodynamic than mechanicals. |
| Mechanical (Expandable) | Blades deploy upon impact. | Excellent aerodynamic flight, large cutting diameter. | Can be less reliable, potential for in-flight deployment. |
| Hybrid | Combines features of fixed and mechanical broadheads. | Good balance of flight and penetration. | Can be more complex and expensive. |
For ethical hunting, especially with larger game, I strongly recommend fixed blade broadheads, particularly those inspired by Dr. Ashby archery principles. Mechanical broadheads can be effective, but they require precise tuning and carry a higher risk of failure.
Simply choosing a high FOC arrow and a quality broadhead isn’t enough. You need to optimize your entire setup for maximum performance. Here are some key considerations:
Heavier arrows generally deliver more kinetic energy and penetrate better. A good starting point is 400-500 grains for deer-sized game, increasing to 600+ grains for larger animals like elk and moose. Remember, heavier arrows require a higher FOC to maintain optimal flight characteristics.
A heavier broadhead contributes to a higher FOC. Look for broadheads weighing 100 grains or more, depending on your arrow weight and desired FOC percentage.
Proper bow tuning is essential for accurate and consistent arrow flight. This includes adjusting your rest, nock height, and timing. A well-tuned bow will ensure that your arrow flies straight and true, maximizing its penetration potential. (National Park Service regulations regarding hunting vary by park; always check local rules.)
No amount of research or equipment can replace practice. Spend time at the range, shooting your hunting setup at various distances. Pay attention to your arrow flight and make adjustments as needed. Become intimately familiar with your equipment and its capabilities.
Ultimately, the goal of any hunt should be a quick, humane harvest. Choosing the right arrow and broadhead combination is a critical step in achieving that goal. By understanding the principles of high FOC arrows, the designs championed by Dr. Ashby archery, and the importance of proper setup and practice, you can increase your chances of success and ensure a respectful and ethical hunt. Always adhere to all applicable hunting regulations and prioritize the well-being of the animal. Remember to follow USDA Forest Service guidelines for responsible hunting on public lands.
Investing in quality equipment and taking the time to properly tune your setup will pay dividends in the field. Don’t compromise on penetration – it’s the key to a clean and ethical harvest.