Most mechanical broadheads have cutting diameters that range between 1-1/8 inch to 1-7/8 inch. Blade retention is critical to the accuracy of this style because any premature opening of the blades will cause the arrow to plane and veer off course.įront-deploying broadheads have the advantage of offering a greater cutting diameter than fixed blades, which translates into greater wound channel damage as the broadhead passes through the animal. Front-deploying broadheads also have a blade retention system that utilizes springs, collars or O-rings to hold the blades in place at launch and while the broadhead is in flight. When the front tips of the blades contact the animal, this causes the blades to swing open, from the front of the blades to the back. Most front-deploying broadheads are offered with three blades.
The blades are mounted to the ferrule using hinges, and, when the broadhead hits the animal, the blades swing open, adding an extra dynamic to the cutting motion and greatly increasing the cutting diameter. The EVO-X Montec Fixed Blade Broadhead by TenPoint boasts a 1-1/8-inch cutting diameter along with a one-piece steel blade/ferrule design and is an excellent all-around fixed-blade broadhead choice for hunting most animals with a crossbow.įront-deploying mechanical broadheads, on the other hand, are designed with blades that remain closed during flight but open upon impact. I also recommend choosing fixed blades that have a cutting diameter between 7/8 inch and 1-1/4 inch, as they tend to be more aerodynamic with the planing effect much less pronounced in blades this size. If you decide that you want to shoot a fixed-blade broadhead, I recommend that you avoid the ones with four blades and instead look for a design with just three. Performing this alignment on your crossbow hunting arrows with fixed-blade broadheads will, most times, help to improve their accuracy and precision, making them a deadly option when crossbow hunting. If you are building your own arrows, another option is to orient the insert when mounting it so that the blades and vanes always line up with each other when the broadhead is screwed into the arrow. To tune fixed-blade broadheads, some crossbow hunters will use a small rubber O-ring just above the ferrule threads that allows the broadhead to be screwed down into the insert to align the blades with the arrow’s vanes. Paper tuning a fixed-blade broadhead shot from a crossbow is not an option, since most crossbows use a flight rail from which to launch arrows.
Your only remedy is to tune the broadhead to the arrow to achieve a higher level of accuracy. On high-performance crossbows, you will see the planing worsen, as shooting at faster speeds magnifies the effect. As a result of this increased surface area and, hence, a reduction in aerodynamic efficiency, fixed-blade broadheads tend to plane, or veer off-course, when shot from a crossbow. The surface area on a four-blade fixed broadhead is even greater than a three-blade because of the addition of the extra blade. Rear-deploying mechanical broadheads also have blades that remain closed during flight but open upon impact when the rear portion of the blade strikes the animal.Īs compared to a mechanical broadhead, the blades on a fixed-blade broadhead are often higher profile and display a greater amount of surface area over which air must travel when the arrow is in flight. Front-deploying mechanical broadheads have blades that remain closed during flight but open upon impact when the front tip of the broadhead strikes the animal. Fixed-blade broadheads have blades that are fixed in position and never move during flight or during wound channel creation. To help make this process easier and to best help you answer this question, we must consider the different types of broadheads available on the market, how the differences in the shapes can affect aerodynamics, and the maximum shooting speed of your crossbow.Ĭrossbow broadheads are built using one of three designs: fixed blade, front-deploying mechanical and rear-deploying mechanical. One of the most common questions crossbow hunters ask is, “Which broadhead is best to use with my crossbow?” With so many broadheads on the market these days, finding the best broadhead for your specific crossbow setup can be difficult to figure out and can take lots of time and money.
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