I purchased a new Omega Scope for my T/C and was wondering if I must have a shooting rest in order to zero it in or can I do it by just using sand bags or the cheaper gun rest bag sets they sell for 20 bucks. As I get ready for deer season I want the gun to be spot on if this is possible without buying a 100 or 200 dollar gun rest? You know what it is like geting just the basics together needed for Bow and gun seasons. So if I can get it done cheaper I'll try if not I'll buy the Gun Rest like a Led Sled by Caldwell.