As an advertizing inducement,scope companies (some) send rings with there scopes.Some rings are suitable for what they are suppose to do,and some are not.Simmons is a big outfit,and they wouldn,t send rings that they didn,t feel would work with most calibers. I,ve found that only when shooting a real big caliber,does one need the higher priced rings.Those should do you fine,and you didn,t have to pay for them.So use them,andi think they should be alright. vangunsmith