I use the US-250 pocket scale for small stuff, archery, and sorting bullets/brass ect..... Everywhere seems to sell this with their name on it for $20. Think mine is from 3-Rivers archery.
I have the Rapala fish scale for stuff up to 50#.
For stuff over that I have a hanging spring scale that goes up to 500# for weighing elk quarters, deer, ect....... Think I got it at Cabelas.