The rimfire match is basically any standard "sporter" type rifle. It has to be under 7.5 lbs and no fluted barrels. So, a bull barreled 16" 10/22 will make weight, a 20" bull will not. Trigger needs to be 3 lbs or above. Scopes/peep sights and open sights are separate classes. A shooting sling is allowed. Total of 60 rounds, shot prone, sitting, and standing.
Now, with all that said, we'll let anyone shoot. Even if you have a big heavy target rifle with a hair trigger you can show up and we'll let you shoot in the "unlimited" class.