Colt Mark IV Government .380 ammo test number 3 - 13 lb Wolff spring kit.
This video is the third in a series testing ammunition compatibility with a Colt Mark IV Government .380 pistol, specifically using a 13-pound Wolff recoil spring. The user observes that the pistol seems to prefer high-velocity hollow-point ammunition. Standard round-nose and lower-velocity flat-nose rounds consistently cause malfunctions. The presenter contemplates switching back to a 12-pound Wolff spring to re-test Winchester Service Grade ammunition, noting that most of their current .380 stock is Winchester White Box.









