Thank you. I've used PT&G for other things in the past. Would they be good for this?
Not if you would like it in the next year.
It for reviews such as these that I chose Manson Reamers when I ordered a 25-222 Copperhead reamer recently. They quoted me 10 weeks and I had it in two.
Chronographs, bore scopes and pattern boards have broke a lot of hearts.