Here's another good bullet for the Omega that's relatively cheap & loads easy.
http://www.prbullet.com/ex.htm
Only $6.26 for 12 bullets when you buy 5 pks. That's $31.30 with free shipping for 60 mighty fine bullets. I recommend either the 240 gr. 40/50 or the 300 grain 45/50. Use around 100 grains of 777 FFF.
http://www.prbullet.com/special1-06.htm