The way I figure it, you have to be fair when recouping equipment costs. At first my ammo was comparable to cheap ammo, so I'd deduct 10 or 12 bucks for 50 rounds loaded. It wasn't long before my loads seriously outclassed the WWB & Blazer stuff so I started comparing cost to match ammo and specialty ammo to be fair.
"Always place your clothes and weapons where you can find them in the dark"
"Understand that the enemy is not the enemy in his own eyes ;this may offer you an opportunity to make him your friend. If not, you can kill him without hate, and quickly."