"Glem.Chally I shoot about 8 mags before topping off, just lazy I guess, when I hit mag 7 then I will drop down to my 50 and 60 yard targets due to the pressure dropping. It's like shooting on medium power so there is some adjusting, good practice."
"z-ski"My fx500 is unregulated and gets about 80 shots before a refill. If you have some empty shotgun shells try nailing them down with the primer side facing you @ 100 yards. Very satisfying when you connect. To get a better visual on the shells get some three quarter inch color coding dots made by Avery, sold at the Mart. Very smooth and quiet gun, will not ever get rid of it.
What pressure do you shoot it down to? I usually top up at about 150 bar or so, which is about 6-7 mags. With 25.39's, with the heavier 34gr I get quite a bit less shots.