Quick Answer
Temperature impacts .17 Remington terminal performance by affecting bullet expansion and penetration. At higher temperatures, bullets may not expand as much, resulting in deeper penetration. Conversely, colder temperatures may cause bullets to over-expand and lose kinetic energy.
Effect on Bullet Expansion
The .17 Remington is known for its high velocity and flat trajectory, but temperature plays a significant role in bullet expansion. At temperatures above 70°F (21°C), the bullet’s jacket begins to relax, causing it to expand more uniformly. However, if the temperature drops below 40°F (4°C), the bullet’s core may not fully expand, resulting in deeper penetration.
Practical Considerations for Varmint Hunting
When hunting varmints with a .17 Remington, it’s essential to consider the temperature and adjust your shot placement accordingly. In warmer temperatures, aim for a quick kill with a shot to the head or spinal column. In colder temperatures, aim for a larger target area, such as the chest or lungs, to ensure a quick kill. Additionally, consider using a lighter bullet weight, such as 20 grains, to increase expansion and penetration in cold temperatures.
Temperature-Related Techniques
To maximize terminal performance in varying temperatures, use a 20-25 grain bullet weight for high-velocity expansion in warm temperatures. For colder temperatures, use a 25-30 grain bullet weight to increase penetration and expansion. It’s also essential to use a high-quality bullet design that is specifically engineered for temperature-related performance.
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