How to install co2 cartridge in Beeman QB 78 air rifle setup

This is Beeman QB78S .177 air rifle co2 setup tutorial. If you want to know how to gas up your air rifle - this video is for you.
This tutorial could be applied QB-78 platform family. The following models of Beeman, SMK and Norconia is compatible:
Beeman QB78 .177
Beeman QB78 .22
Beeman QB78S .177
Beeman QB78 Deluxe .22
Beeman QB78 Deluxe .177
Beeman QB78 Deluxe 5.5mm
SMK QB 78
Norconia QB 78
Norconia CO2 QB 78 DELUXE 4.5mm
Norconia QB SX 78
QB78 Deluxe
To charge #Beeman or #SMK #QB78 first remove the tube cap. If tube cap is difficult to turn off, check to make sure that the gun is not yet charged with gas by disengaging safety and firing the gun in a safe direction.
When you are sure that the gun is completely discharged of gas, you can remove the tube cap by
hand.
After removing the tube cap, then cock gun by pulling up and back on the bolt knob, engage
safety, so that the arrow points to the”S” indicating it is on safety, insert two 12 gram CO2
cartridges BACK TO BACK and tighten the tube cap completely, then turn the tube cap off
1/4 turn. This will release the CO 2 from the cartridge adjacent to the tube cap. The other
cartridge will be pierced when the rifle is fired.
Chapters
0:00 Intro
0:23 Co2 cartridge insert
2:16 Closing Cap - Pierce 1st capsule
2:59 Dry fire to pierce 2nd capsule

[@leonjyrag]

thanx for this.. v clear.