Wolfman - Nice work, as always. You’re view of the Super-X .45 MP round got me to thinking about the system used to achieve increased penetration over normal 230 grain ball. That is, primarily a thickening of the bullet jacket at the nose (along with a lighter bullet for increased velocity). Norma did this some time after the Super-X MP round, with a commercial (and perhaps non-commercial) “Armour Piercing” 9 mm Luger round using only a thickening of the bullet jacket at the nose to achieve improved penetration on hard objects. It was sold on the open market in commercial-style boxes and in commercially headstamped Norma brass. Out of the box, it is difficult to identify since there are no special markings such as a tip color.
Does anyone know what company, and with what caliber, used this thick jacket nose system for this purpose?