Hello fellow m&p owners. I have what I may believe to be some leading issues. I have shot around 250 rounds of the ultramax reman ammo through my 40 s&w shield. Gun Rand flawless, no hickups, couple coughs from the smoky powder, but otherwise pleased. I broke the pistol down for cleaning and was surprised to find lead streaks (looked like strings?) Hanging from the recess of the rifling of the barrel. Took a brass brush up and down the barrel and then found small dropplets along the rifling here and there. I am assuming I am seeing what is described to be leading. Anyone ever had this problem or seen it with the m&p line?