Yeah, I've seen pronghorn in their book, but the data seems to be pretty plain. I think they score them a lot like most African game - One length measurement and one base measurement and that's it. I don't think they score the prong measurement, though, which would be a tragedy for this buck!
I do believe the WR in their book is something like 20-inches long with an 8-inch base (don't quote me on that, though).
Does anyone have any other info on the RW WR? I looked for photos of it before but didn't have any luck.