IF U HAD SCOPE YOU CAN USE IT BUT , ID OPT FOR A MIL OR MOA SCOPE , HERE IS RETICLE ON THAT SCOPE Burris 4-16x50mm Fullfield IV 6.5 Creedmoor Scope SO IF YOU SHOOTING A SAY 30FPE GUN WITH 18 GR PELLETS AND ZERO AT 50 YARDS THEN HOLD AT 100 YYDS WOULD BE , AROUND 5,5 , AS I ASSUME MARKS ARE...