. 7 × 5 5 mm ▁V KS ▁sil enced ▁sni per ▁rif le ▁is ▁intended ▁for ▁special ▁operations ▁that ▁require ▁silent ▁firing ▁and ▁pen etr ation ▁much ▁superior ▁to ▁that ▁provided ▁by ▁ 9 × 3 9 mm ▁V SS ▁sil enced ▁sni per ▁rif le . ▁Typ ical ▁targets ▁for ▁the ▁V KS ▁are ▁combat ants ▁in ▁heavy ▁body ▁arm or ▁or ▁behind ▁cover . ▁The ▁weapon ▁uses ▁an ▁integral ▁suppress or . ▁ ▁Design ▁The ▁special ▁round ▁has ▁an ▁overall ▁length ▁of ▁ 9 7   mm . ▁The ▁accuracy ▁is ▁claimed ▁as ▁ 1 ▁Min ute ▁of ▁arc ▁at ▁a ▁ 1 0 0 - meter ▁range ▁with ▁precision ▁bul lets . ▁ ▁Cart ridge ▁variants ▁: ▁ ▁SC - 1 3 0 ▁( С Ц - 1 3 0 ) ▁- ▁standard ▁ ▁SC - 1 3 0 U ▁( С Ц - 1 3 0 У ) ▁- ▁for ▁training ▁ ▁SC - 1 3 0 PT ▁( С Ц - 1 3 0 П Т ) ▁- ▁increased ▁accuracy ▁( 5 9 ▁gram ▁bullet ) ▁ ▁SC - 1 3 0 PT 2 ▁( С Ц - 1 3 0 П Т 2 ) ▁- ▁increased ▁accuracy ▁( sol id ▁bronze ▁bullet ) ▁ ▁SC - 1 3 0 V PS ▁( С Ц - 1 3 0 В П С ) ▁- ▁increased ▁pen etr ation ▁( 7 6 ▁gram ▁bullet ). ▁Arm our ▁pen etr ation ▁: ▁ 1 6   mm ▁of ▁steel