My longest 44 is a 6.5" Model 29-2,
Had a 3.5" 29-3 but sold it years ago,
The 4" 629 Mountain guns are really neat but my favorites are the 5" 29-5 and 629-4 Classic full underlug, guess you could call them the Goldilocks, not too long, not too short, not too heavy, not too light.