No, you need an FFL to cast bullets for anyone's consumption other than your own. Technically, there's verbiage about "engaged in the business of" in the ATF's laws, which would seemingly allow a person to make bullets and give them to friends, but if there is any more convoluted and omnipotent beast than the ATF I don't know what it is...maybe the IRS? ITAR is all about the IRS, so you are dancing with both of them if you take money for ammunition components you make, and even "good will" has been considered a form of payment by the alphabet agencies in the past.
Ammunition component manufacturers (such as commercial bullet casters, engaged in the business of making bullets for a living) also need to have a class 06 FFL license and pay the ITAR tax in order to operate. If you have acquired some commercially produced (cast, jacket, monolith, whatever) or milsurp pulldown bullets which were made by a licensed manufacturer, you can sell/trade/give those to anyone just like a bag of Skittles or spark plugs.
So basically if someone isn't properly licensed they cannot legally help you out.