Hi I purchased a FX Impact M3 a couple months ago from Palm Beach Air guns. It is a .22cal with a 600mm barrel and I believe a 480cc bottle. This is the second Impact I have owned so I am familiar with the platform. I felt it could do better than the way it was factory tuned so I started messing around with it. I got it shooting solid groups at 55yards with great economy in the shot count, Then a couple weeks later I wanted to try some slugs. I upped the reg pressure to around 135 bar and set the micro adjuster to about 4 and was sending 27gr H&N 2s 960fps and getting dime size groups at 55yards
. I mostly shoot paper in my yard so I reset it for 18gr pellets. These are my results. From a 250bar fill I'm getting 7 mags (28rounds per) and still above the reg Shooting 18gr fx pellets 917fps average with a 1.5 S/D. BTW I keep my guns in a safe I pull them out and put them back by the barrel. I haven't experienced the poi shift I have read about. Here are a few pictures. The wind was mostly from behind me and slightly lt to rt 5-10mph. no holding for the wind. First 5 shots of the day at 55yards. I didn't include pictures but the valve adjuster is set at 4 lines.
. I mostly shoot paper in my yard so I reset it for 18gr pellets. These are my results. From a 250bar fill I'm getting 7 mags (28rounds per) and still above the reg Shooting 18gr fx pellets 917fps average with a 1.5 S/D. BTW I keep my guns in a safe I pull them out and put them back by the barrel. I haven't experienced the poi shift I have read about. Here are a few pictures. The wind was mostly from behind me and slightly lt to rt 5-10mph. no holding for the wind. First 5 shots of the day at 55yards. I didn't include pictures but the valve adjuster is set at 4 lines.