Just stuff a little wad of steel wool into the hole and fill it up with 50/50 solder. This time, clean and flux it so it won't fall out again. Once it cools, file it flush and polish it with worn 320 grit cloth, backed up by a file. Don't let the solder flow into the joint between the choke and barrel( maybe clay or tape).
Mike

Last edited by Der Ami; 07/27/16 02:34 PM.