https://www.atf.gov/firearms/qa/person- ... nufacturer
Your suspect would have to be licensed by the ATF to sell reloads, and therefore has already committed a possible federal offence. I don't know how strictly this is enforced, but for what it's worth. I think this would give a good amount of leverage in an interrogation if the subject sold reloaded ammo without a license.Is a person who reloads ammunition required to be licensed as a manufacturer?
Yes, if the person engages in the business of selling or distributing reloads for the purpose of livelihood and profit.
No, if the person reloads only for personal use.
[18 U.S.C. 922(a) and 923(a); 27 CFR 478.41]