When I started loading I used a Lyman T-Mag mounted to a homemade mount that I clamped to the kitchen table.
The Mec Jr. was mounted to an old Formica sink cut-out clamped to the kitchen table as well. (Loaded many a trap round this way).
Both were long before Cowboy shooting.
I still use both presses, (as well as some progressive ones) except they are mounted to benches now.
I also have the same Lee Hand Load Kit in .44 Mag/Spl. but I've never tried it. The video was informative. I may have to dig it out and load 1 or 2 rounds.