is an outstanding tool, it's like Google but specifically for ammo. I've found plenty of deals on several different caliber.
Edit: I prefer 7N6 as well, cheap excellent round in all aspects. Cleaning doesn't bother me.
Sgt. of Marines, 5th Award Expert Rifle, 237/250
1st Award Expert Pistol, 382/400
D Co, 4th CEB, Engineers UP!! OEF 21JUN-20SEP2011