Winchester™ 777 Triple Seven 209 Primers are specifically designed for Muzzleloading and burn milder than typical 209 Shotshell Primers. The Triple Seven 209 Primers do not force the powder charge forward in the barrel, helping to maintain consistent velocities and minimize formation of corrosion rings. Winchester™ 777 Primers are more sensitive, easier to seat, and more compatible with progressive and automatic loading equipment than ever before.
Winchester™ guarantees better sensitivity and positive firing in all guns, consistency in size and quality and stability in extremes of temperatures and humidity. These Winchester™ 209 Primers are constantly being tested and meticulously improved for field and target loads in all gauges. Primers come load-ready in 100 to 5000 count storage packets. These primers are not designed to be used in shotshells, they are for muzzleloading rifles only.
The leader in rimfire ammunition
Triple 7 Primers
Designed to be used in modern muzzleloader rifles
Thorough burning creates less residue
Loose or Pelletized Powder
Can be used to ignite either granular or pellet powder