Yup, agree with everything Mac said. It wont help the nut at the end of the stock one bit, but if the shooter does his part, it WILL help with groups. It probably wont make a worn out barrel shoot any better, but it certainly will improve groups in a rifle that needs just a little help. I can't relate it with a Handi since I dont own one, but on bolt rifles, it does the job. Now, as for looks, well, I have to agree with the others there, it does look kinda like a toliet plunger doesn't it? My "friends" call mine my "c**k ring". Oh well, it helps my Rem. sporter 22-250 shoot one hole groups and it sure makes hitting them "dogs" a lot easier. :lol: