plasma choke

Patterned my new Beretta 692 Trap, 32". Chokes (Optima HP): Briley Plasma Full Briley Plasma IM Briley Plasma M Briley Spectrum LF Beretta's flush chokes. Form 40 yards: Top barrel, Remington STS 1200, #8, 1 1/8 From 35 and 30 yards: Bottom barrel, Remington STS 1145, #8, 1 1/8 Names of the...