Deprime, clean I.D. of neck with S.S. bore brush on power drill.
Anneal- removing carbon from I.D. before annealing is advised.
Tumble for 1.5 hrs approx with S.S. media, car wash soap WITH wax in its formula and a tad of Lemi-Shine. Separate in a separator, rinse with water, magnet up all the...