The best (and only) way to join the club is to make friends with a member at the rifle, action, or skeet range and have them sponsor you. All RRGC range officers are members... over time, one of them will be happy to guide you through the process of becoming a member.
Stop by one of the range offices to pick up an application. By tradition, we only accept paper membership applications. Your sponsor will be able to provide you with their name and member ID number, which will be tied to your profile.