Does Rain Lower Your Bullet's Point of Impact?

by
posted on July 31, 2014
bs_2015_fs.jpg (9)

undefinedThe Myth
Shooting in the rain causes bullets to impact lower than normal.

The Reasoning
It's simple, right? A bullet flies horizontally, raindrops hit the bullet from above, imparting their mass on it, causing the bullet to fall faster and impact the target lower.

The Facts
Sometimes the physics are counter-intuitive.

Fact is, bullets normally impact higher than normal when it's raining, as anyone who has shot extensively in the rain knows. Why? As the NRA Fact Book states: "Changes in humidity have little effect on the air density, and thus on the flight of the bullet. Changes in barometric pressure, on the other hand, do have an effect. In general, fair weather is accompanied by a high barometer, which means more air density and more resistance to the bullet. Likewise, rainy weather is likely to occur at times of low barometer, when air pressure is low, producing less air density and resistance to the bullet. A drop of 1" in the barometric reading will increase the ballistic coefficient by about 3.33 percent."

The Answer
Shooting in the rain generally causes bullets to impact higher than normal, not lower.

And oh, what a glorious feeling ... to be shooting in the rain!

Latest

Grouse Shawarma LEDE
Grouse Shawarma LEDE

Recipe: Easy Grouse Shawarma

Brad Fenson takes some fresh spruce grouse from a recent hunt in Saskatchewan, and turns them into an easy, delicious shawarma.

Art Fueling Conservation in Arkansas

The Arkansas Game and Fish Commission (AGFC), Arkansas Game and Fish Foundation and Historic Cane Hill have issued a nationwide call for art to be featured on the 2025 Arkansas Northern Bobwhite Conservation Stamp and Eastern Wild Turkey Conservation Stamp.

4 Reasons Big-Bore Revolvers Are Still Ideal Trail Guns

Although semi-automatic pistols have a place in the trail gun line up, revolvers still have their advantages.

First Look: Rise Reliant Bolt-Action Trigger

Rise Triggers has entered the bolt-action market with its first-ever trigger for the Remington 700 platform: the Reliant Hunter and Reliant Pro triggers.

NRA Announces New Club Leadership & Development Online Course

The National Rifle Association of America is pleased to announce the release of its newly revised edition of the NRA Club Leadership & Development Online Course.

USDA Order is a Win for Wildlife

Late last month, the U.S. Department of Agriculture (USDA) issued a memorandum to conserve and restore wildlife habitat connectivity in the United States, directing agencies within the USDA to consider habitat connectivity in planning and programs in a manner that recognizes State and Tribal authorities and respects private property rights.

Interests



Get the best of American Hunter delivered to your inbox.