Quick Answer
A 100-grain broadhead may not be sufficient for larger game animals, such as elk or moose, due to their substantial size and muscle mass. This is especially true for longer shots, where the kinetic energy and penetration required are more critical.
Broadhead Design Considerations
When choosing a broadhead for larger game, it’s essential to consider the design, specifically the weight, diameter, and number of blades. A 100-grain broadhead with a single blade may not provide the necessary kinetic energy or penetration, especially at longer distances. A heavier broadhead, such as 125-150 grains, with multiple blades, can improve penetration and expansion, increasing the chances of a clean kill.
Kinetic Energy Requirements
To determine the minimum kinetic energy required for a clean kill, consider the size of the animal and the distance of the shot. A general rule of thumb is to aim for a minimum kinetic energy of 100-120 ft-lbs for shots under 20 yards and 150-180 ft-lbs for shots beyond 20 yards. This can be achieved with heavier broadheads and faster arrow speeds. For larger game, such as elk or moose, it’s recommended to aim for a minimum kinetic energy of 180-200 ft-lbs or more.
Arrow Speed and Broadhead Selection
To achieve the required kinetic energy, it’s essential to select an arrow with a sufficiently fast speed. A good starting point is to aim for an arrow speed of at least 250-275 fps, which can be achieved with modern archery equipment. From there, select a broadhead that complements the arrow speed, such as a 125-150 grain broadhead with multiple blades. This combination can provide the necessary kinetic energy and penetration for a clean kill on larger game animals.
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