Me in version 1.15.2 I don't have loots, how am I supposed to get weapons?

How to obtain bullets since there are no recipes in JEI then?

Why are you commenting on a closed issue from 6 months ago...

Also, the issue tracker is for bug reports, your question is more suited to the Discord.

1. 1.152 isn't supported.
2. If you mean 1.16.5 then you craft them. Use JEI to view recipes because they're not documented anywhere as of yet.