.219 Zipper Load Data & Reloading Guide

The .219 Zipper cartridge was introduced in 1937 by Winchester, designed specifically for lever-action rifles, notably the Winchester Model 64. Its development was part of an effort to create a high-velocity small-caliber round suitable for varmint hunting. Derived from the .25-35 Winchester case, the .219 Zipper aimed to bridge the gap between traditional low-velocity lever-action cartridges and the emerging popularity of fast-moving varmint rounds. Although innovative at the time, its performance was soon overshadowed by more modern cartridges, and commercially loaded ammunition is no longer readily available.

Technically, the .219 Zipper is characterized by its bottlenecked shape with a nominal bullet diameter of .224 inches, although early versions were designed for .223-inch bullets. The case length measures 1.94 inches, and the cartridge overall length is approximately 2.58 inches. Its maximum pressure is considerably lower than most modern high-velocity rounds, a necessary limitation given the design constraints of the lever-action rifles for which it was intended. Nevertheless, it was revolutionary in its ability to produce velocities around 3,100 feet per second with a 56-grain bullet, among the fastest for any lever-action rifle of its era.

Ballistically, the .219 Zipper performs adequately for its intended purpose, providing solid accuracy and enough stopping power for small game and varmints. Typical bullet weights for reloading range from 40 to 55 grains, with 50-grain spire points being popular due to their balance of speed and terminal performance. The round's relatively modest recoil and flat trajectory make it appealing for small to medium game hunting at shorter to moderate distances.

For reloaders, the .219 Zipper offers several advantages, particularly given its scarcity in contemporary markets. Reloaders can tailor their ammunition to optimize performance within the pressure limits of their specific rifles. Understanding the peculiarities of this caliber, such as the importance of proper neck tension and bullet seating depth due to its aging chamber designs, allows enthusiasts to breathe new life into vintage firearms. Modern propellants can further enhance the accuracy and efficiency of the .219 Zipper, maintaining its legacy in a specialized niche of reloading aficionados and classic rifle collectors.