I have a question for the SB F-class group...Why have rules not been modified to include mag feed for just the F-class rifles? The popularity of Rimfire competition is exploding right now. The advent of extreme high-end repeater rifles is growing. Our local club can have upwards of 40 shooters show up for our rimfire matches, NRL22, Marksman, Vudoo 22lr Series and ABRA bench. We are looking to add SB-F class to our line up. Problem we have is a lot of the mag feed rifles will NOT single feed! I am thinking if the NRA or American Smallbore Shooting wants to try and build numbers they really should look at modifying it. NRL22 has caused a growth in PRS style 22 matches all over the nation.