Guys, the best deal for 06 for the Garand is through the CMP and you don't have to jump through all the hoops you do to buy a rifle, just a couple pages to fill out and join an affiliated club like the Garand collectors' Association. $25.00 a year and it qualifies you.
Greek HXP,which is excellent M2 Ball goes for $96.00 plus shipping for 192 rounds in En-Blocs in Bandoleers.
They also have Hornady M2 at reduced prices, 100 rounds for $85.00. This stuff sells for $35.00 a box of 20 at the local stores.
About 98% of the Commercial ammo is not safe to shoot in your garand, too much port-pressure. Damages Op-Rods and sometimes, Bolts.
Here's a link to the CMP Eligability requirements.
http://www.odcmp.com/Sales/eligibility.htm