Fortune500

Hey all i am new here-nice site(Y). I am looking to get into shooting,pest control+ rifle ranges so that will be a SGC+FAC-i have the understanding needed to deal with those issues as there for smaller arms there is one thing i am not aware of though,i would like to get a 50 cal rifle specifically for club member ship! What class does this come under..i have a feeling its not standard FAC..any infomation/personal expereince you can share would be great. Cheers for your time.