Influence of weather conditions on rifle accuracy during hunting seasons?

Temperature Fluctuations

Temperature changes can affect the rifle’s accuracy by altering the bullet’s expansion and the barrel’s expansion and contraction. A temperature difference of more than 20°F (11°C) can cause a 1-2 MOA (minute of angle) shift in accuracy. It’s essential to consider temperature fluctuations when hunting, especially in areas with extreme temperature changes. To mitigate this, use a rifle with a temperature-stable barrel or a rifle with a muzzle brake to reduce heat buildup.

Humidity and Air Pressure

Humidity and air pressure also play a significant role in rifle accuracy. High humidity can cause the bullet to expand more than expected, resulting in a larger group size. Aim for a relative humidity of less than 60% for optimal accuracy. Air pressure changes can also affect the bullet’s trajectory, with a 1-inch (2.5 cm) change in pressure resulting in a 1-2 MOA shift in accuracy. Use a barometer to monitor air pressure and adjust your aim accordingly.

Wind and Shooting Technique

Wind and shooting technique are also crucial factors to consider when hunting in varying weather conditions. A 10 mph (16 km/h) wind can cause a 2-3 MOA shift in accuracy. Use a wind gauge or a rangefinder to estimate wind speed and direction. When shooting, use a consistent shooting technique, including a consistent grip, stance, and breathing pattern. This will help minimize the impact of wind and other environmental factors on your accuracy.