patrick, i own a T2K which i recently rebarrelled with a 7.5 twist 28" pac-nor, it was deep chambered by them and i threaded and head spaced it myself. i use norma brass at long range with 115 moly d-tac, 38g AR2209 (H4350), .020 off, never cronied it but worked best in load development. extraction is no problem with this load. i use type S redding FL bushing die with .268 bush. Brass life is good so far with 5-6 loads. Not sure what reamer Pac-Nor use but i was pleased with the finish job throughout.
Fireformed winny brass works well for short range also, using a .265 bush, 38.6g with a 95 moly sierra MK . I FL ever time and have good brass life with this chamber and FL die. good luck, Pete
Fireformed winny brass works well for short range also, using a .265 bush, 38.6g with a 95 moly sierra MK . I FL ever time and have good brass life with this chamber and FL die. good luck, Pete