I would think a 26 Nosler should easily reach 3200 with 140's with a 26" tube. I run 140 AB's at 3180 in my 264 with RL25. I have a 26" barrel, maybe I am lucky, but Nosler brass holds up really well. I haven't lost any primer pockets and the accuracy is as awesome as I could hope for out of a factory Sporter.
