Looks like 16.5fpe is right in line with when the specs are saying. Specs are also saying a minimum of 100 shots at that level on a full fill
Manufacturer countryUkraine
Caliber4,5 ; 5,5 mm (.177 & .22)
Barrel length330; 450 mm
Energy of shuting22,5 J ; 30 J ; 44 J
Velocity of bullet due to weight280 ± 40 m/s
Dimensions W x L x H710 ; 805/50/186 mm
Weight3,0 ; 3,1 kG
Magazine capacity12 ; 10 bullets
Barrel (characteristics)Steel, 12 grooves
Value of reservoir180 sm3 ; 220 sm3
Work pressure30 MPa (300 kgs/sm3)
Diameter of filling port6 mm
StockWood, type Bull-Pap
Regulation of stock Cheekpiece 0 - 15 mm
Trigger pull (regulated)1,1+11(0,1+1,1)H
Way of trigger, regulated1-4,0 ± 0,3 mm
Quantities of shots with full reservoir, no less100 ; 60
C-T-C on distance of 30 m, no less 20 mm