I own an icon in 30tc as well. Got a deal on it, and at the time in 09, the cartridge looked interesting, even promising,....and then it died. Still own it, still love it. Moderate recoil out of a very solid rifle, sub Moa all day in 3 shot groups only.
Factory ammo can still be bought, albeit rare to see on the shelves. Got a bunch on clearance from cabelas, and wholesale sports has it fairly routinely. I've made a habit of buying s box every time I see it, stock piled enough for a few years of hunting.
For reloading, I bought full length sizing hornady dies from Brownells. I'm still looking for neck sizing dies; if you find some post back. Lots of load data available. They used some proprietory powder for factory loads, and at the time, claimed the loads couldn't be duplicated with hand loads. I plan to test this, but as of this date, haven't been able to confirm.
Travis