Actual round count. Even though I reload, cartridges don't get counted until they are fully assembled. I literally count every single round. I also have all ammo boxes labeled and a small post-it on the inside with the current round count. All ammo is separated by caliber and each caliber gets it's own box/boxes. All boxes have rubber seals and silicon desiccant pouches. My reloaded ammo is same as above except bullet weight, powder charge weight and primer type used are all written on each box inside of the storage box. All ammo is situated in a line and stacked outward from smallest/weakest to the largest/most powerful caliber. Yes, I have OCD.