Other features: Ported tubes do help slow the wad down, allowing it to separate cleanly from the shot charge, ... The shotgun choke with the tightest pattern is, up to a point, ...

Trulock has developed a new line of 12-gauge chokes in cylinder through turkey constrictions for the Stevens 555 over-under shotgun.. The 12-gauge tubes are offered in three styles—a flush-style ...

These chokes not only are ported, but they are noticeably longer than standard screw-in "full" chokes. At 4 inches, Remington's extra-full "Ventilator" turkey choke, for example, is exactly twice ...