My Dad used Imperial Special Long Range in his Tobin. He only hunted upland. He was also known to blast the odd red squirrel out at his grain farm. I used it after he passed away. As with today, each had their favorite shell. Maxim, Canuck Heavy Load, and both varieties of Imperial were the only shotgun shells I ever saw being used when I was a kid. I think some of the big wig duck hunters used Winchester and Remington/Peters.
I have a collection of many different shotshell boxes, mostly with shells, in my office at my playhouse/shop. I have a weakness for paper shells. I lost my sense of smell so I can't enjoy the smell of a good old C-I-L hull. Darn.