I have a RCBS hand primer and the one on my rock chucker. Asked the same question here months back, and alot said 21st century. I went that route and there is no comparison. You get a great feel for when the primer bottoms out, or you can add crush. ( I never have.) I was surprised at the little amount of force it took to see the primer. Feels really well made. I don't think you could go wrong with it.