This might be a bit late - but I only noticed this thread a few days ago. Since I was there, (Hell!), I'd like to add a few things and maybe clear up a few misunderstandings.
Dave Westerhout shot a Browning HP 9mm with an aluminum Bomar-rib. But his power factor was indeed minor. Peter Maunder and I also shot minor caliber, Peter used a Hi-power, I shot a SIG 210. Raul Walters, Tommy Campbell and Ray Chapman all shot .45s. (Single stack, of course, and 8 round magazines did not appear on the market until about 1982).
Shooting Minor was not a disadvantage, though. The target used in 1977 was the same shape as the IPSC metric target, with full corners. The A zone was a 10 inch circle, the C-zone a 14 inch circle and the D the rest of the target. (Actually the labels used then were X, Y and Z, but I find it easier to use today's nomenclature.) Now for the scoring:
Major: 10-9-8
Minor: 10-8-7
Which means a peripheral minor hit in 1977 still scored 70 percent of an A hit, as opposed to only 20 percent today.
An additional scoring rule was "The Rhodesian Triple". If a target had three or more hits and one of them was an A, the target got scored as a double A.
This is not memory distortion; I still have the original match program, and managed to dig it out today.
The way the target was scored, a minor could do quite well. On the other hand, the way the courses were laid out did not penalize a single stack mag. Most stages gave you plenty of time to change magazines, as an example the 25 rd. "House Clearing", included probably more than 120 yards of running distance.
I could go on for a couple of pages with stories, but I'll stop for now.
I was particularly pleased to see a pic of my old friend Andy Langley again, and to be reminded of what was probably the most memorable competition I've ever entered.
Vidar Nakling,
Norway.