I just mic-ed the Buck 105, 119, and 650 - all 420HC heat-treated to Paul Bos's specifications. The steel is not 'just' 420 SS - takes and keeps an edge quite well.
105 .120"
119 .186"
650 .234"
Yep, the 105 is maybe the right 5" length, but a tad thin. The 119, Les Stroud's choice in several of his 'Survivorman' episodes, is another great choice - and readily available (They were $34 at Wally World last year.). Great knife, even if mine - and it's 120 big brother - do reside in my kitchen drawer - for meat/veggie slicing duties. The 119 has a 6" blade (The 120 is a 7.5"!).
Stainz