ArmsVault Newsletter Signup ArmsVault Facebook ArmsVault Twitter ArmsVault Blog ArmsVault Youtube

 

ArmsVault Supporters

 

CTK Precision

 

SiteLite Lasers Boresighters

 

CrossBreed Holsters Concealment Holsters

 

ATF Machinegun Full Auto Gun Sales

 

Campbell Gun Racks Gun Storage

 

Covert Carrier Gun Concealment

 

Midwest Industries Tactical Rifle Accessories

 

Bulk Ammo from Lucky Gunner

 

Liberty Suppressors Gun Suppressors

 

VersaTac Shooting Range Equipment

 

Off the Grid

 

Brownells

Blue Book Gun Values

Gun Industry Advertising

Gun Glossary

Return to Gun Glossary

Brownells

Sectional Density:
A bullet's weight in pounds divided by the square of its diameter in inches.