When making a mithral weapon(ie a dagger) do you halve the weight before or after you price it by the weight?
Use the original weight of the weapon before mithral, not after. You are applying mithral to the original weapon stats. So a dagger would cost 502gp as a dagger weighs 1 pound. [Source] Q: What about Shurikens and mithral weapons as shurikens weigh half a pound and they come out cheaper than masterwork version? As a masterwork shuriken costs 301gp and a mithral set would cost 251 gp. A: A your taking into account the correct prices of masterwork shurikens vs mithral shurikens. Shuriken are treated as ammunition for many purposes including crafting which means you craft the value as if you where making 50 of them. So a single set of masterwork shurikens, which is 5 shurikens, costs 30 gp or 6 gp a piece. While Mithral shurikens costs 251 gp.