SKU: SUP22LRB2 Winchester Super Suppressed .22 LR 45-grain subsonic ammunition is engineered for low-noise, reliable performance in suppressed rimfire platforms. This listing is for a 1400-round case packaged as 4 × 350-round boxes. Designed to minimize report and reduce fouling, the round pairs a 45-grain black copper-plated round-nose projectile with clean-burning propellant and Winchester’s manufacturing standards to deliver consistent velocities, smooth feeding, and repeatable accuracy during extended suppressed-range sessions. Features