627ss4

When using my new Tracker 627SS4 (7 rounds) 357 MAG the cylinder seizes-jams after 2 rounds fired (each session, 5 total) during the first in-door range trip; revolver used in SA and DA. I was using American Eagle AE357A 158 gr JSP (Jacketed Soft Point) 357 MAG cartridges. I fired the revolver 3...