I thought a long time about getting a dedicated slug gun. When I watched videos of how to adjust the Vulcan 3 and Uragan 2 regulators, multiple dis-assembly and re-assemblies required, de-gassing the whole bottle, reg tester (Vulcan, +$180 none commercially available for the Uragan that I'm aware of) de-pingers, oversize bores in .25 and .30 (why'd they do that?) and paying tuners for ONE projectile, I decided my FX Impact M3 in 600mm is my best bet. I can make it be whatever I want it to be, without sending it anywhere, and the platform is mature. I did consider the Panthera, but to me, the gun is just too long and unwieldy, and the current situation at FX does not make me want another. I see no current airguns that would interest me. For now, the eight guns I have from .177 to .357 (doubles of a couple cal's), are about as good as it gets.