2-piper,
You could easily be correct about the oversize wads needed for the mag tech brass hulls.
I do keep remembering meeting the son of a hunter and target shooter that owned a really nice Parker and used it for all his shotgun shooting for decades, BP and later early bulk powders. Seemed he much preferred the old thin brass hulls (vs factory loads in paper hulls) and his own reloads for duck and goose hunting because they killed much better. I can only think that the larger wads sealed much better, giving tighter and/or more even patterns. That gun never had the bores reamed -- the gun, like all the others his father owned -- was very well taken care of and still in excellent condition when I saw it, at least 30 years later.
Niklas
