G'day Folks
Wondering if anyone could give me a list of rifles allowed or tell me where to find out what is?

Taps, I use a Crossno insert in my Stevens 44 1/2, as do most shooters, if you want to have a deadicated .22BPCR it must conform to the same rules as a BPCR for Sil. . ie; External hammer etc. only a .22 HTH John

I don't mean to direct away from this website but in case you didn't know, the .22 BPCR silhouette Association has its own website and lists of rules and even a forum. It is very new, but good info there.
http://www.22bpcra.org/
http://forums.22bpcra.org/