First post here and I'm keen to get the opinions of some experienced shooters. I'll say up front I have no idea what I'm talking about - so if I use the wrong terminology or anything just let me know

Located in the ACT it seems that I'm lucky enough to have a pretty awesome range near by. I went out last Saturday and tried out F-Class shooting with the Canberra rifle club and loved it - all of the people there were also nice and helpful. I've also signed up with the SSAA for membership along with booking in for a firearms safety course so I can make an application for my license (A&B). There are some questions / opinions I'd love to have answered though - particularly for anyone who know's the range in the ACT.
- What's the relationship (if any) between the NRAA and the SSAA? It seems 'F-Class' is a NRAA thing? Is Benchrest the SSAA equivalent?
- Given I really enjoy shooting with a scope and at longer distances is any one organisation better or worse for this interest? At the moment I'm looking at probably joining both, I imagine it's viable?
- Practice wise I want to put as many rounds down range as I can, can you access the range at any time if you're a SSAA member? Does being part of the Canberra Rifle Club allow the same type of thing?
- It seems the Omark is one of the go-to rifles for a beginner in F-Class, does this also allow me to shoot with the SSAA?
- Within reason is there any particular rifle that's a little more modern which is good to look at for a beginner, even if slightly more expensive than the Omark?
Thanks for checking out the post and sorry for what must be a ton of basic questions. As you can tell (from a beginner at least) it's been hard to try and find out a lot of this information, especially with regards to 'who allows what' type of things.
As long as I get a chance to practice long range stuff (even if not in competition) on a regular basis I think I'll have a ball of fun - looking to see the best way forward for achieving that.
Advice appreciated!