Sabots 451 to 452" DIA bullet:
260gr Nosler HP
300gr XTP Mag
250gr XTP
Powder: 90 to 110gr Pyrodex RS ( Its mainly all i use )
You'll want to use the Short black mmp-12 sabot with these. They load very firm but CVA barrels have always done the best for me with a tight fitting sabot.
One more Sabot load that shot good for me:
200gr .40cal Lehigh in the dark blue sabot with 150gr Pyrodex RS.
Powerbelts:
245gr Aerotip 80-90gr Pyrodex RS
348gr Aerotip 90-110gr Pyrodex RS
338gr Platinum 100gr + Pyrodex RS
The most accurate bullet so far is with the 250gr Ballistic tip Thor conical with 110gr Pyrodex RS. The 247gr Colorado Thor also shoots a quarter size hole for 3 shots @ 100. I highly recommend that you email Thor and request a sample pack to figure out what Diameter bullet you'll need ( My Accura uses the .500" thor ) These bullets have done great in the 2 rifles ive shot them out of so far.
Primers, If you dont mind swabbing every 2 shots or so with Pyrodex RS, I highly recommend the Winchester W209 primers as they are Super clean. The Winchester 777 primers ease the crud down a bit but the fouling they leave all over the action of the rifle, is just unbelievable. I shoot them anyway but as soon as i run out of them, the Winchester W209's will do perfectly fine.
Blackhorn209 is also a great area to look, but its pricey! If you want to just shoot bh209 for hunting so you dont have to worry about cleaning, thats perfect! It just would hurt the wallet for range shooting. At least for me it would!!
If you look above at my post of the Accura with the exposed primer area, that rifle was shot 3 times with heavy 348gr powerbelts and a 100-110gr charge of RS. There was zero fouling with those Winchester W209s.
http://www.rrarms.com/catalog.php?search=cva+accura