I shot in NRA smallbore competition for several years, Prone matches at 100 yards. I used an Anschutz 1407 match rifle (because I had it from years back) and mounted a Unertle 20X 1 1/2" target scope. For ammo, yo need to search out what ammo groups best from your particular gun. 22RF are finicky that way. I had a batch of Fiocchi 320SM Super Match that grouped wonderfully from my gun and I had squirreled away a quantity dedicated to just that rifle. The rifle/ammo was capable of 1/4" (5 shot) groups at 100 yards from a bench rest (with no wind). If I recall correctly my best match was 396 of a possible 400 point match. It is very demanding and you need to be able to dope the wind.
We shot the NRA 3 bull targets, top for a shghter and two bottom bulls for score. Here's a few of my prone targets.
Have fun.