your gun will shoot more consistant groups after firing one time.ussually the 2-6 or7 shots will group the best for me. if i shoot mine perfectly clean it always shoots high and to right,after that it goes back to dead center. you must learn what your gun does. i site mine in ,then clean it completly. the day before hunting i shoot it once ,then reload and hunt.
i have a range off my back porch so this fairly easy for me.

if i hunt for a few days without firing it,i just pull the breech plug ,remove the pellets and add new ones and a new primer. just to make sure it hasn't drew moisture. i may run a brush down the barrel but i never scrub it during the season unless i shoot alot.