I'd not recommend the Lyman. I have one of the dial version, and it's just not well made. Readings vary, ever-so-slightly. It's just a cheap piece. My dad has a Craftsman dial caliper that he bought when we first started reloading, roughly 30 years ago, and it's still tight and smooth to work with. I'm starting now to build my workshop and that includes my reloading equipment. So this post is right on time.
