I was considering getting some riflechamber adapters from this company in alaska I believe it's called mace The also make rifle adapters for shotguns and cartridge adapters I heard some of them need to installed with chemicals and tools and that others slide freely in and out I tried emailing the company with questions but haven't had much luck does anyone know about any of these? are they any good? can they be installed in the field? are they safe for the operator and the firearm? I'm considering a cartridge adapter in 22lr for 223 or a rifle bore adapter for in 22lr for 30/30 They seem neat but it might just be an inefficiant gimmick I don't know. Any thoughts?