Precision-tuned ammunition designed and formulated for use in short barrels. Whether you are the owner of a short-barreled rifle patrol carbine or arm-brace pistol each projectile used is specifically selected to deliver the highest ballistic and terminal performance from powders tested and selected to deliver 100% burn low muzzle flash diminished report and high velocity. Safe for use with suppressors and optimized for barrels ranging from 11.5" to 7.5" in length.