Anyone have any experience with the Black Hole Weaponry/Columbia River Arms barrels for the Mossberg MVP? My factory barrel shoots extremely well and will stabilize the 75 ELD Match decently enough to hit the 1k mark, and shoots lights out with 70 VLDs out to 700 yards. However it's a 1:9 twist and 24". I'm wanting to go to a 1:7 to stabilize the 80 grain range or be more consistent with the 75 ELD Match and a longer barrel in the 26"-28" length range. It seems that BHW/CRA are the only ones making aftermarket barrels for the MVP. Any experience will be grateful.