Thread: 50/50 solder and lead

1% tin is all you need to fill out those bullets so they look like silver jewels.

Solder is mostly tin, and is a good way - if a bit expensive - to get tin into your mix.
As little as 1% tin will fill out your bullets and give them crisp edges. Go and buy some solder from mitre 10 and throw into your pot. If you get some today you will have fixed your problem.

(You can gestimate the ratio, bit its not critical if you just want to fill out your bullets. Just put it some in.)