I have two 30 cal BT65s that's tuned almost the same. Both have 80cc extra large plenums for the regulators and both shoot 880-890 fps for 20 shots on the regulator. So I decided to change one. A couple of months ago Ernest Rowe was selling smooth twist blank barrels so I bought one. My buddy machined it to fit my BT65. I got a chance to test it at 35 yards a couple of days ago and it's shooting lights out. I can say without a doubt that all 4 of my 30 cals are super accurate PCPs.
