Hi
I have a SMK B19 air rifle and I'm having trouble ordering the correct pellets I ordered Premier .177 / 4.5 mm . 7.9gr .51 g too small , then .22cal 14.3 gr . 93 g . Too big .
Rifle spec is Cal.177(4.5) .22(5.5)mm as written on the small bumff that came with the gun . It means nothing to me sorry . Can you help
thanks Charlie