I generally agree with the comments above. The earlier version of Ranier plated bullets were particularly problematic, with thin plating over what looked like a lunar landscape. More recent incarnations seem to have thicker plating and give acceptable results.
Also, beware applying too heavy a crimp, which can deform the bullets to the point where they pattern instead of group.
Also, beware applying too heavy a crimp, which can deform the bullets to the point where they pattern instead of group.