Well, I can't say I agree with all their conclusions but it might be interesting to experiment with the .36 caliber pellets in todays hulls.  I think the fact that he was using cast shot instead of drop column shot may have had a lot to do with the success of his loads.   

"STEPCHILD of the ammo industry is the buckshot shell for deer. It has acquired such s a poor reputation as a deer stopper that many states have legislated against its use."
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Consider that one of the better 9 pellet factory 00B patterns, in the article, revealed only 5 hits in 24 inches would be considered pathetic by todays "in the know" buckshot hunters.  Only the worst of the "el cheapo" factory buckshot on the market today would rival this low level of pattern performance. 

Update article link:

GUNS Magazine July 1957

Scroll down to page 33.

https://gunsmagazine.com/wp-content/uploads/2018/12/G0757.pdf