Not in a 30" pipe, but a 26" is very nice. The 264 needs slow powder to work well. I used H870 with 140gr bullets to get over that 3200 FPS range. Faster powders would only yield #'s just over 3100 FPS. If you plan to shoot lighter bullets you can probably get away with shooting faster powders just fine.
I opened my 264 up to a 6.5-300 Win Mag. I am pushing the 3300 FPS mark with a 140gr now in a 24" tube.
Who has a 6.5mm - 300 Win Mag? Need Pet load data.
264 WM can be a love/hate relationship, but once you find the sweet spot, you'll love it!