The Winchester 41 Small Rifle Primers are specifically designed for use with 5.56mm NATO-spec military ammunition. These primers are built to military specifications, offering reliable ignition for high-pressure loads often found in military and tactical rounds. The #41 primer is known for its enhanced sensitivity, optimized for semi-automatic and fully automatic firearms, and provides resistance to slam fires, a key safety feature for military-grade firearms.

Here’s a summary of key features:

• Type: Small Rifle Primer (#41)
• Application: 5.56mm NATO-spec Military Ammunition
• Designed For: High-pressure military and tactical loads
• Safety: Reduced sensitivity to prevent slam fires in semi-automatic and automatic firearms
• Reliability: Ensures consistent ignition under extreme conditions

These primers are commonly used by shooters and reloaders looking for high-performance, reliable ignition for military-grade cartridges.