The 5 monthly varying COF stages produced by NRL22.org monthly will normally have 10 and sometimes 12 rounds in a stage. A 10 round COF with a 120 second Par time is the standard. Club stages are not standardized across the country. Targets are .25" and larger, approaching 2.5 - over 3 MOA.
Suggested rifle: A rifle with the ability to perfrom magazine exchanges, receptive to a bipod (considered part of the rifle) accepting a sling, and configured with a FFP scope. Connercially produced sugs may be used in .177- .22 caliber, .30 cal must be pellet only.