Last summer myself and NorthCountry from the forums here sent 3 of our 45 cylinders to The Cylindersmith and had them reamed. He gives a little discount for multiple cylinders. I have one I'm ready to mail out. Anyone else want in on the deal? He does several calibers. We can each save a little dough and give him a little more business. Check out the link and you can see what he does. 10% of his earnings get donated to a trust fund for the children of a man killed in the 911 attack.
Like I said, I've dealt with him before. It's a straight up deal.