Product Details; Remington sts In Stock 

Remington STS 209 Primers. 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 percent 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.

• The most consistent primer available
• Premier STS primers reduce shot to shot velocity variations up to 40 percent in reloads
• Premier STS primers can be substituted for Remington’s previous 209 primers without changes in published reloading formulas
• Hot-burning, non mercuric and non-corrosive mixture ensures complete powder burn and clean barrel
• Remington sts in stock feature all-brass primer cup and brass plated battery cup, with covered flash hole