20 Rounds of 180gr JHP 10mm Ammo by Winchester

The 10mm pistol is a serious tool for personal defense. It only makes sense that you should choose a serious brand of ammo. Winchester Defender is conceived to do one thing and one thing only: pass the FBI test protocol for defensive performance with flying colors.

This round’s 180 grain jacketed hollow point bullet has two key features that ensure consistent and effective depth of penetration and width of expansion. Its core and jacket are welded together – i.e. bonded – to combat fragmentation during penetration of barriers. The bullet remains almost completely intact even after piercing sheet metal. Its durability assures the bullet conserves enough momentum to penetrate its target to a depth of 14 to 16 inches. The bullet’s jacket wears eight long exterior notches. These enable it to peel back in uniform directions, transferring energy outward and increasing the JHP’s overall diameter by 1.5X in the process.

Nickel-plated brass cases pose two chief advantages: friction reduction during cycling, which can prevent a poorly timed jam, and enhanced corrosion resistance. As a final touch, this ammo is loaded with powder that conserves the shooter’s night vision by emitting a duller-than-average flash.