Remington 209 Premier STS Primer for Muzzleloader - 209PSTS Complete Specs and Full Gun Specifications

Extensive testing with a variety of commonly-used reloading powders has shown that 209 premier STS primers, compared to other commonly-used primers, create reductions of up to 40% in the high-to-low spread of velocities in reloads. This improvement in velocity consistency is an important benefit to those reloading target loads for practice or competition.