So, I have a pair of bolt action 223's that shot 1/2 moa for several years. The first one has somewhere north of 6000 rounds down it and the second is not far behind. The barrel finally gave out on the first one so I called NSS to see about a replacement. I want a pre-fit, 26 inch stainless, varmint taper in an 8 twist, exactly like I have now. And I want the chamber cut with my custom reamer. After he told me that Criterion would do that for me with a small fee to chuck up my reamer I told him to double the order and make it two because I'm sure the second barrel is not long for this world.
Since then I've bought an action wrench and a barrel nut wrench and watched numerous youtube videos and I am looking forward to getting these barrels.
Last week an email came from Criterion to let me know that they are scheduled for production in December. With a little luck I will have them installed and loads verified in time for chuck season at the first of April. The two barrels on my rifles now are chambered with this same reamer so I'm hoping that my tried and true loads will produce similar results in the new ones.

In the meantime I'm tumbling and annealing 2400 cases. I will wait until I can run some test loads in the new chambers to set my sizing dies and finish reloading.