I did a search and this seems to be the thread where the Howa Mini gets the most mention.
For non-SHOT this year, Howa announced the Carbon Stalker Mini action. 22-in, standard profile barrel with a carbon fiber stock and weighing 4 lb, 10 oz. Chamber options are 6.5G, .223, 7.62x39 and .350 Legend (16.25-in barrel).
https://www.legacysports.com/brands/...bon-stalker-2/
There are a few in the wild so far.
I've seen a 6.5G weighed at 4 lb, 11.4 oz.
I've seen a claim of a .223 weighing 4 lb, 15 oz., after the owner subtracted the published weights of his scope and mounts.
I suspect the 4 lb, 10 oz. was probably the 7.62x39, and I'm guessing the .350 Legend might come a little lighter.
There are two possible sources of hinged-floorplate bottom metal, one of which has "temporarily" suspended production. Unfortunately, that is the one with the longer mag box length.
I kinda want one of these.