Don't do like I did once.. purchased some #10 caps at the store instead of #11. Same tin, same color, just a different number. Don't stores know that old men don't always carry their reading glasses? Good thing I have a black powder revolver that uses them caps. Then the other day I was looking through my pile of supplies and found six tins of Musket caps. I have two rifles that shot them. But the price tag on them... $3.99 a tin. They had to be old!!!