- Manufacturer Winchester
- Condition New
- Bullet Weight 165gr
- Projectile Type JHP
- Ammo Use Type Self Defense
- Casing Type Nickel-Plated Brass
- Quantity 20
- Caliber .40 S&W
- Manufacturer SKU S40SWPDB
- Primer Type Boxer
- Muzzle Velocity (ft. per sec) 1140
- Muzzle Energy (ft. pounds) 476
- Magnetic No
- UPC Barcode 020892217850
- Cost Per Round $1.35 per round
- Q & A
This cartridge is loaded with a bonded jacketed hollow point bullet. Winchester’s proprietary bonding process means that the bullet’s jacket and lead core resist splitting apart as they pierce barriers and proceed to penetrate soft tissue. This ensures that the bullet retains the weight and momentum requisite for effectively deep penetration.
The JHP’s jacket is divided into six sections by a series of symmetrical notches. These strategically weaken the jacket to ensure that it splits apart evenly as the nose cavity fills with pressurized soft tissue. This is how the JHP consistently achieves 1.5x diameter expansion, which maximizes damage to surrounding soft tissues and decreases the risk of over-penetration that could injure an innocent bystander.
This ammo’s reliable Boxer primers and low-fouling propellant give its 165 grain JHP a muzzle velocity of 1,140 fps. That is supersonic, and fast enough to transfer over 450 ft lbs of energy to the target at close range. (For reference, minimum impact energy between 220 and 300 ft lbs is recommended for personal protection.)
Winchester’s Defender series cartridges feature nickel-plated brass cases. In addition to being reloadable, they are resistant against corrosion, smooth enough to reduce metal-on-metal friction that could have complicated feeding and extraction in a semi-automatic firearm, and bright enough to easily see in a firearm’s dark chamber. This ammo is additionally loaded with flash-suppressed propellant, which will help to keep your eyes acclimated to low light and conserve your ability to aim accurately in the dark.
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