What I hear from my bullet-casting friends about Lee moulds is that the tolerances are rather wide, apparently mostly on the large side. Some will be just fine, others cast bullets some folks find too big, even to size down without unacceptable distortion. Supposedly this is consequence of machining Al alloy on the cheap.

At least a few of us like to find folks with specific Lee moulds that cast oversized bullets. We buy them "as cast" to use either in cartridges requiring larger bullets than anything standard today or in old guns with oversize bores and chambers.

Niklas