10-03-2015, 07:28 PM
I have a Gamo Hunter 220 in .177. After cleaning and lubricating I shot a standard weight pellet. Some lubrication must have gotten into the compression chamber. There was a loud crack that echoed a lot. Subsequent shots, with 10 grain pellets, were much quieter. I have been considering getting the Benjamin Nitro Piston NP2 in .22. I have only ever shot the Crossman pump up BB guns and that Gamo so I don't really know what I am missing. In fact I never did shoot it much until recently. After hundreds of shots at a fixed range, dialing in the scope, I realized the scope was creeping. There is a little stop that clamps to the dovetails that is supposed to stop this. It has a little set screw that engages the top of the gun. After researching these things on the web I learned that on most guns with this feature there is a corresponding hole or dimple in the right place. Not on mine. Also the stop had a rubber bit that fell apart. I ended up gluing the scope mounts to the gun with JB Weld. Now my crosshairs are no longer horizontal/vertical and the scope is pretty hazy. Basically the whole set-up is pretty low end. I was happy with it for years because I never knew it was a piece of ****. I have been very tempted by the NP2 but the PCP guns seem like the ultimate. The entry level Crossman/Benjamin is reportedly very loud though.