I am still shooting my 22cal FX King/600mm barrel with all of the settings exactly as they came out of the box. I plan to pretty much keep it there and test a variety of slugs. When I find one or more which work for me, then I might consider making changes. I realize there are about a bazillion variables and the diameter of the slugs is just one. That is why I asked because I am new to slugs(but not airgunning). I have a 30 ft/lb AA S410 that loves 16gr and 18gr JSB pellets. The AA has no adjustments, not even a safety. I bought the FX specifically to be slug gun and will continue to shoot the JSB's with the AA. But I also have a variety of pellets I accumulated over the years that I plan on trying through the FX...just for fun. I can predict from my past experiences that what will likely happen is once I find an overall good enough slug weight and diameter that my gun shoots, then I will buy a good supply of them and just focus on having fun punching holes in pestilent mammals and/or birds.
