Winchester WMGSR Small Rifle Primers - 1000 Count Box (5 Cases)

The Winchester WMGSR Small Rifle Primers deliver consistent ignition performance for precision reloading applications across a wide range of small rifle cartridges. These non-corrosive, non-mercuric primers provide the reliable spark needed for accurate ammunition assembly. Professional reloaders and competitive shooters depend on Winchester's manufacturing consistency for match-grade results.

What Makes This Different

Winchester's small rifle primers feature a specialized priming compound formulated for optimal pressure curves and burn characteristics. The brass cups undergo precision manufacturing to ensure uniform wall thickness and consistent seating depth. Each primer receives individual quality inspection before packaging, resulting in ignition reliability that exceeds 99.9% across temperature ranges from -40°F to 140°F.

Key Features

• Non-corrosive, non-mercuric priming compound prevents barrel damage
• Consistent cup dimensions ensure proper seating in small rifle cases
• Temperature-stable ignition from -40°F to 140°F operating range
• Compatible with all standard small rifle cartridges including .223, .308, 6.5 Creedmoor
• Individual quality control inspection for each primer
• Bulk packaging of 1000 primers per box reduces per-unit cost
• Five-case quantity provides 5000 primers for high-volume reloading

These primers excel in precision rifle applications where consistent velocities and accuracy matter most. Competitive shooters report standard deviations under 10 fps when combined with quality powder and bullets. The reliable ignition characteristics work equally well in hunting loads and match ammunition. Temperature stability ensures consistent performance whether loading for summer prairie dog hunting or winter big game seasons.

Technical Specs

• Type: Small rifle primers, Boxer-style
• Quantity: 1000 primers per box, 5 boxes per case (5000 total)
• Priming compound: Non-corrosive, non-mercuric
• Cup material: Precision-formed brass
• Operating temperature: -40°F to 140°F
• Compatibility: All standard small rifle cartridges
• Country of origin: United States
• Storage: Cool, dry conditions away from heat sources

Winchester's reputation for ammunition components spans over 150 years of manufacturing excellence. This bulk case quantity provides serious reloaders with sufficient primers for extended shooting seasons while maintaining cost efficiency. The consistent performance characteristics make these primers suitable for both precision match loads and general shooting applications.