jmcd,
During WWII my grandfather used to reload rimfire cases - I have seen the setup and talked with him at length about it before he died. I don't know if you can still get the primer mixture but it used to be available in 1/2 oz bottles (in liquid form). The tooling allowed you to straighten the rim, re-prime, charge the case, seat the bullet and finally crimp it in place. He had a mould for his bullets and cast them from discarded split-shot sinkers. He used black powder (fffG I believe) and had a lot of fun shooting them. If you could find a source for the primed cases you could easily load RF magnums with plated or even jacketed bullets.

PaulS

Think safety, act safely, live long enough to enjoy it