Prices depend on source, pictures, condition. From what I have been watching, commercial sellers are higher than individuals/auctions. The "about average" prices are as follows. This is all anecdotal from what I have been seeing, price will vary a lot week by week and region to region.
30-06 ======= 0.25 - 0.50 (commercial. dirty- processed) /// 0.10 - 0.50 (individuals. dirty - cleaned) Overall average seen around $25/100
303 British === don't see it it often. I've got a few random in mixed brass for about 0.10 each for whole package.
30-30 ======= 0.25 - 0.50 (commercial. dirty- processed) /// 0.10 - 0.50 (individuals. dirty - cleaned) Overall average seen around $30/100
223/5.56 =====0.05 - 0.10 (commercial. dirty- processed) /// 0.02 - 0.05 (individuals. dirty - cleaned) Overall average seen around $50/1000
9mm ======== 0.03 - 0.07 (commercial. dirty- processed) /// 0.01 - 0.05 (individuals. dirty - cleaned) Overall average seen around $25/1000
40 Cal ======= 0.03 - 0.06 (commercial. dirty- processed) /// 0.01 - 0.05 (individuals. dirty - cleaned) Overall average seen around $25/1000
45 ACP ====== 0.05 - 0.10 (commercial. dirty- processed) /// 0.01 - 0.10 (individuals. dirty - cleaned) Overall average seen around $50/1000
32 ACP ====== 0.10 - 0.15 (commercial. dirty- processed) /// 0.03 - 0.10 (individuals. dirty - cleaned) Overall average seen around $10/100
38 Spec ===== 0.10 - 0.15 (commercial. dirty- processed) /// 0.05 - 0.15 (individuals. dirty - cleaned) Overall average seen around $12/100
357 Mag =====0.20 - 0.50 (commercial. dirty- processed) /// 0.10 - 0.25 (individuals. dirty - cleaned) Overall average seen around $20/100
7.62 Nagant == Haven't seen any
30 Carbine === 0.30 - 0.40 (commercial. dirty- processed) /// 0.05 - 0.20 (individuals. dirty - cleaned) Overall average seen around $20/100