My beloved P68SC-T, with Cooper-T RVA and Better Bolt, which we always called the undershot bolt. These were popular back in the day when honed barrels were common. Most modern barrels, even new, have such a bad finish that they kill the spin before the ball leaves the barrel. This one would lift as much as any flatline or apex.
She's now owned by good friend and fellow MCBer Deacon.
He made great stuff and improved my enjoyment of paintball