The SUU23 gun pod was what we had at Homestead in the 307th and 68th
and at DaNang in the 390th - it held 1100 rounds of 20mm linkless ammo
(about 1.1 pounds per round). If it was regularly boresighted (simple,
using the borescope and the X on the nose gear door) it shot through
the pipper. The 8x10 mil pattern was only 8 feet by 10 feet at 1000
feet so if any MiG was under the pipper he was toast.
I never even got to see a MiG but onst I fired 300 rounds (having fun
- started shooting at 4000 feet slant range) in one pass at Avon Park
range and got 100 hits. It also killed a T54 for me. I'd call that
effective.
Walt BJ