Hmmm. That shoulder issue with re-formed .30-30 brass was never a problem for me. Could be a case of a minimum chamber + good tight headspace? Better to have that kind of problem rather than the other direction.

My all time favorite HP brass (for longevity) is stuff I formed from .30-30s, but it is a royal PIA to do that. .25-35 brass is the source of HP brass for me anymore. I sectioned a sampling of brass a couple years ago and found that the .30-30 brass was a tad thicker in the web than modern HP brass and .25-35 brass- but that is in no way conclusive due to the small sampling involved. Could've been a fluke.

"You can lead a man to logic, but you cannot make him think." Joe Harz
"Always certain, often right." Keith McCafferty