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May 23, 2023 · The .366 TKM is a Russian straight wall "shotgun" cartridge, based on the 7.62x39 and was designed by Russian company Tekhrim possibly around the early 2010's. It fires .377 caliber (9.58mm) bullets according to The Firearm Blog.
Aug 13, 2015 · It is based on the 7.62×39 M43 case necked out to .366 (9.5mm), with taper but no neck. Its main intent is for the use of surplus 7.62×39 weapons bored out or rebarreled to smoothbore configuration, preferably with Paradox rifling at the front 140mm (4.5″) of the bore.
The Molot VPO-208 answers to that need as a smoothbore conversion of the popular and venerable Simonov SKS semi-automatic carbine, albeit chambered for a newly-developed caliber: the .366 TKM. The .366 TKM round – metrically addressed to as 9,5x37mm, although the first VPO-208s were marked “9,5x39mm” – is based on a 7,62x39mm M43 case ...
The 366 TKM is made up from 7.62×39 cases cut to 37,5mm and loaded with 9.3mm (.366in) bullets and used in smooth-bored, ‘Paradox’ rifling (on the last 140mm of the barrel to provide spin on the bullet), rebarreled AK rifles.
So I seen multiple people say 366 TKM is a fictional round. However I did some research and people were saying that this is a real round. They said that the point of this round was to get around the gun laws in Russia because the dimensions of the round make it count as a shotgun bore round or something like that.
May 23, 2023 · Despite appearance, the VPO-209 is actually considered a shotgun due to Russian firearm regulations, where smooth bore firearms are classified as such. Likewise, the cartridge it fires (the .366 TKM) is of course also classified as a shotgun cartridge, despite largely firing solid bullets ("slugs").
Sep 9, 2016 · Yes, that includes .22LR. And in other countries we would love to get our hands on Saiga or Molot shotguns, but can’t due to availability or other gun related laws. The .366 TKM is a redesigned 7,62×39 cartridge. It’s been necked up to accommodate a 9,55 mm “slug” and cut to 37 mm. (9.55x37mm) I wonder if anyone makes any tools for it? Dillon?
