Crigg, that was my post. I did get one of these at Gander Mtn. I put it on my Browning Micro Hunter that was shooting about 2" groups with whatever I put thru it.. I tried it near the stock and near the muzzle, and a few places in between. It actually made the rifle shoot worse. Just for giggles, I put it on my Ruger 77 300 win mag and it didn't do anything - probably cause of the heavier barrel on the Ruger. I took it back, got my money back and took the little Browning to the gunsmith and had him bed the action. It cost me a whopping $25 but the last time out it shot groups from 3/4" up to 1". And I don't have that unsightly looking rubber on the barrel. (to be honest though, I was using handloads - and the Sims commercial does say it improves accuracy using factory ammo....yeah right!!)