4x5 Copper X 7 Hevi.....Nitro's for me. Expensive yes, though i have seen some Winchester Hevi's priced over $50 for 10 this year. Ammo has really gone up since I've bought any. What's $7 bucks for a turkey shell, that's the cheapest thing i buy. Had a guy asked me in Florida a couple years ago why i payed $4 for a shell and said why not this trip probably cost $1200, why skimp on shells.