Is there a proper procedure for using silver in molds?? I'm pretty sure it's going to be needed. No it's not going to be cheap, but better to be ready.
Or stop being silly.
Any FMJ, lead, or HP solid to the cerebrum will do. (Cerebrum is da upper part of da brain). Cerebellum works wonders, just harder to hit on the move.
I printed off and read an article on this in 2019. Some college woman was doing it for a research project. The two biggest problems were that the silver would cool to quickly to get a clean casting and the bullets would shrink too much to be reasonably accurate. They retried with custom molds and had better success but they still had problems such that only one in five bullets were usable. There are metal companies that sell round balls in silver and 18k gold. Do some more research.
Why are you looking at a vampire killing kit for werewolves? Wood stakes for vampires, silver bullets for werewolves. Unless you’re in Blade realm, in which case a Samurai sword laced with silver is way fucking cooler.