Lee or Hornady custom dies made from your brass are something like $100.00. That's not only cheaper than RCBS but the dies will be straight. I've had a falling-out with big Green and their standard of over-sizing brass and relying on the expander button to open them up for a bullet. All of my green-box dies oversize the brass. When you send 3 fired cases, they should be able to make dies that size the necks only enough to hold a bullet - no more. Yes, I know the others oversize the necks too, but they do it less than big Green. RCBS ticks me badly. Most of the green box dies I have accumulated over the years are not concentric from the bodies to the neck portion. Take a straight case (proven) and size it without the expander button in the die, they come out crooked in the neck. We hates it. I am slowly changing all my dies over to Lee or Hornady. I do like the collet dies for my varmint rounds.