Confirm your age
Please verify that you are 18 years of age or older to enter this site.
$32.99
Winchester USA Ready Defense 45 ACP 155 grain hollow point RED45HP ammo stands apart through its comparatively light bullet weight for 45 ACP. A rigid Hex-Vent insert occupies the projectile's nose rather than leaving a conventional empty cavity. This version offers an expansion-oriented defensive bullet while differing substantially in mass from traditional 230-grain 45 ACP ammunition.
The insert's job is to transmit impact forces into the bullet's engineered opening features while protecting the cavity from obstruction. Winchester specifies 1,000 fps for the 155-grain version, a ballistic reference that should not be generalized to heavier 45 ACP cartridges. The USA Ready Defense family also uses match-grade primers, a separate feature concerned with ignition consistency.
For shooters evaluating lighter-for-caliber 45 ACP loads, the exact 155-grain marking and RED45HP number are important identifiers. Winchester provides factory lot-specific data, which permits a more precise comparison than assuming all USA Ready Defense cartridges share one velocity or performance profile. The American-made brass-cased ammo is sold in 20-round packages.