OK OK ......... for all of you doubters out there. For those of you who have never worked with a Nuisance Permit: first the Critters are Canada Geese and Cormorants - both of which have destroyed my property and the local fishing. Second, even though you have a nuisance Permit, it doesn't stop the local "Sierra Club" activists from harassing you. The wildlife management professionals whom I am working with have warned me about this. Unfortunately, the birds are skittish and do most of the damage while I am away. When I am in the vicinity, they stay roughly 100-150 from me. This is well out of the range of a 10/22. Anything that is unsuppressed and/or not using subsonic ammo creates to much noise (mussel blast and/or "Sonic Crack") i.e. ... it scares the birds away and attracts to much attention. But most importantly .... supersonic ammo could propose a danger down range. From what I am learning, subsonic Ammo in a .308/.223 has a short lethal range. It is important not to attract undue attention or hurt anyone down range and operate in a responsible, safe manner similar to DEC personnel. Generally, they use 10/22s - this is not suitable for my conditions and I am looking for an alternative if one exists. I hope this clears up any confusion or skepticism. You cannot belive the amount of crap I have cleaned off this property. Thanks for your information.