Oriana Pendandt with 10.5mm Rivoli

NA — Large base rings: 2, 18 swg 3/8 (AR 8.8)
10:18 — Small base rings: 8, 19 swg 5/32 (AR 4)
16:18 — Sandwich rings: 4, 19 swg 1/4 (AR 6.5)
16:18 — Capture rings: 4, 19 swg 1/4 (AR 6.5)

10:18
Count: 263 rings/ozt
aspect ratio: 3.88
inner diameter: 10/64″ (reduces to 5/32″)
wire: 18ga AWG (0.0403″, 1.02mm)
263/8 = 32 : quarter order = 8

16:18 (same as capture rings)
Count: 181 rings/ozt
aspect ratio: 6.20
inner diameter: 16/64″ (reduces to 1/4″)
wire: 18ga AWG (0.0403″, 1.02mm)
181/4 = 45 : quarter order = 11

16:18 (same as sandwich rings)
Count: 181 rings/ozt
aspect ratio: 6.20
inner diameter: 16/64″ (reduces to 1/4″)
wire: 18ga AWG (0.0403″, 1.02mm)
181/4 = 45 : quarter order = 11