Thanks Guys,

I don't know much about scopes, etc. IF I put a new scope on this gun and keep the same mounts, will I have to have it re-bore sighted or could I just swap them out and dial it in again?

Also, IF I wanted to get the BDC scope how could i use that IF they are setup to range for 150gr. pellets and 250gr. sabot? Should I shoot the FPB with 2 50gr. pellets or pyrodex or 3 pellets? Seemed fine with 2.