A while back there was some discussion about the whereabouts of Ross Seyfried. Wherever he is, he's still plugging away because the 2016 Hodgdon book has an article by him on Olde Eynsford black powder.
There's also a good one by JB on the wonders of 165gr bullets and 4350 in the .30/06.
Ahh yes good old Ross, who's this JB fella you talk about?
Some young upstart?
