Oh the memories!! Used to shoot a lot of that 1oz load as a kid in late 70's and 80's. Still shoot 20 gauge 1 oz plated #5 at roosters. Good luck with the vintage ammo and 4 shot experiment.
Seems I whiff most often when hunting with a witness...over a perfect point by my dog. At least last week both buddy and I whiffed..."let's not talk about this" was best response I could muster.
Agree Goose, hunting eastern MT and it is ridiculously dry. Tough scenting but easy to keep track of the dog... watch for dust clouds! Putting on a lot more boot miles avoiding driving on grassy 2 tracks spot to spot.