Encompassing an entire series, SMc™ cartridges are designed to provide superior ignition and a more efficient propellant burn. Compared to conventional cartridges generating similar performance, the patented SMc™ design provides many advantages, chiefly:

• Increased velocity potential (superior ballistics) – significantly so in relatively larger versions
• Reduced barrel vibration (increased accuracy potential)
• Less barrel heating (extends shooting strings before heating disrupts accuracy)
• Reduced bore damage (increased barrel life)

Be sure to read:
Redefining Fast:
5315 FPS A GENUINE MILE-PER-SECOND CLUB