Herb,
The finer points of rules interpretation aside, if you can't get a 18 round (max) stage done in 22 or 25 or 31 (dunno about wheel guns) rounds, you should probably be looking at a solution other than packing more mags.
Sit back and enjoy the show,
Chuck
I have never said I needed more mags. I only wanted to get a rules clarification. This came up at a match I was shooting last Sunday and just I just wanted to get a clear answer. I suppose we now have that since since HQ's answer has chimed in.