What happens when temperature drops?
-By Sanjay Soni, MD of Hughes Precision Manufacturing
Air density affects the ballistics of your ammo. The lower the temperature, the higher the density. If the temperature drops 20 degrees, it’ll cause the bullet to impact the target lower by one inch per 100 yards.
Your Weapon’s Zero
If you previously zeroed your weapon at 320C and you’re now in freezing temperatures, your ammo could impact the target nine inches lower at 300 meters.
The best way to ensure a hit is to zero your weapon again with the ammo you’re carrying and confirm your battle sight zero at 300 meters in forecasted weather conditions.
It’s also important to keep your weapon and ammo dry in extremely cold weather.
What happens when you bring your weapon in from the cold?
The warm, humid indoor environment causes condensation to form on your weapon and ammo. If you take your weapon back outside with condensation on the ammo, then it’ll freeze and cause serious problems. That’s why the best thing to do is to secure weapons and ammo.
In the next article in this series, we will cover how changes in altitude affect the accuracy of your shot outside.
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