Hi guys. Pretty new to air rifle shooting. Today blew my budget and got a .177 Gamo Big Cat. with scope. Now i didnt reali like the scope on it so got an extra Stoeger 3-9x40AO scope. Was told the new scope will fit strait into the Gamo rings. It does but the front of scope is touching the barrel. Is this a problem or will it be fine ? Thank you for any help