Don't get a T/C Black Diamond.
It shoots as well as another inline, but is real difficult to clean.
In addition to that residue from the primer gets on the scope.
The scope needs to either be one of these see under scopes or be removable to clean the weapon.
They make a velcro boot to cover the primer area. This prevents the flash from getting on the scope, but worse it redirects any residue toward your eyes. I know this because I fired it once with the boot and without glasses.
Another problem with mine is that the ramrod rattles in the holder. I put an o-ring around it and the barrel to prevent this.