Aimsurplus has 223 ammo for 1,000rds (50 boxes): $289.50 ($5.79/box) on there website
PMC .223 55grn FMJ 20rd box 5.99$
PMC X-TAC .223 62grn SS109 20rd Box 6.19$
http://www.aimsurplus.com/
PMC .223 55grn FMJ 20rd box 5.99$
PMC X-TAC .223 62grn SS109 20rd Box 6.19$
http://www.aimsurplus.com/