Keep us posted. That sounds very interesting. I find with my non-ported super barrel I am already at low level .460 Velocities. I can get 185 Noslers out at 1450fps from the 6" tube. Buffalo bore 255grs go 1130fps from that barrel. reflex264

"A quiet hit in the right place is better than a loud miss in the wrong place followed by 10 more shots on the run"

I was a handgun hunter, when handgun wasn't cool.....