I'm an anarcho-capitalist. We are currently a small faction among libertarians, but we're growing fast. The reason people become anarcho-capitalists is the fact the phrase "limited government" is an oxymoron. Once you have government, it continues to grow until it consumes all of society. "Limited government" is a concept similar to "limited melanoma." A democracy will never be a stable situation. It inevitably blows up.
Words can often come down to semantics. I like to use the term smaller government vs. limited because limited means there is an overseeing agency that limits exactly what it can do or not do. We have the Constitution to put limits on government but it's a guideline, not an enforcement agency.
Let's say a company has no problem dumping raw waste into a lake, how would an anarcho-capitalist handle it? I would support government health and environmental regulations but oppose government wage controls. That in my mind separates me from a socialist.