I have a proof carbon 28 nosler barrel for a Desert Tech srs A1 or A2. Has the newest barrel extension. 26” long 1-8 twist and threaded 5/8x24. Has 200 rds through it. Shoots the 195 berger and 190 Atip very well. Has been very well taken care of and never shot long strings. My local smith chambered this barrel and it shoots bugholes. I have some twice fired nosler brass and a redding fl sizer die to include with it. I had my fun with it now its time for someone else to get enjoyment out of it! Looking to get 1200$ shipped OBO. Selling to buy a proof carbon barrel for my curtis vector action.Also have a 500 rd lot of the berger 195 and around 200 of the 190 Atip we can work into the deal.