I like the Cabelas Herter shotshells. If you watch you can pick them up for $57 a case with $5 flat rate shipping. They are a cheddites hull, I can get 3-4 reloads out of them.
http://www.cabelas.com/product/Shooting/Ammunition/Shotgun-Ammunition%7C/pc/104792580/c/104691780/sc/104567580/Hertersreg-Field-and-Target-Loads-150-Per-Case/1545677.uts?destination=%2Fcatalog%2Fbrowse%2Fshotgun-ammunition%2F_%2FN-1100191%2FNs-CATEGORY_SEQ_104567580%3FWTz_l%3DSBC%253BMMcat104792580%253Bcat104691780&WTz_l=SBC%3BMMcat104792580%3Bcat104691780%3Bcat104567580
