Air running out…#@>?

Down to 2400 psi fills from the 2 scuba tanks. Maybe fill them in the few days duh. Soooooooooo I decided hold back some reserve for my favorite rifle.
my cz452 varmint has been setting since last summer after playing musical scopes. too many rifles and not enough scopes. Well the centerpoint 4-15X40 A0 ww (wally world)wound up on the cz after a new scope for the condor. needed to zero the scope, elevation was crisp loud clicks and the windage was muffeled and mushy. Finished zero at about 35 yards .5 groups.
started plinking at an iron target and it rung like a bell. Seems to hit about twice as hard as the condor. My .177’s make a barely audable tink. the condor .22 makes a loud twhack and the rimfire makes a loud ding.
anyway I enjoyed another afternoon of my favorite hobby?

BTW the Condor is louder than CZ452 shooting Wolf Math Extra’s and it’s not going Sonic, the groups are about 1/2 inch.