As I posted above, there are a number of issues with the Yorkshire rules that handicap the air rifle ie. wadcutters only(not good enough at 25 yards) and a simple hard front rest (no good for the recoiling air rifle)
So the rules that I have proposed for the Midland league clubs will allow an adjustable front rest and a rear rest (same as allowed in UK22BR competition)and of course round nose lead pellets for air guns

NSRA rules do not allow a rear rest. However I shoot in NSRA competitions and in a league that uses UK22BR rules and find no problem in adapting to the 'no rear rest' rule. Scores come down naturally without the rear rest but by only a fraction of a point ex 100 for both rimfire and airgun