WWII was something in the pacific.
And nowadays we die when the guy next to you farts.
Wasted generation.
If we assume the 150mm frontal armor, with 92mm pen I don’t see it any higher than 5.3. The reload on a 15cm cannon will be very long and the 47s just aren’t doing much at this tier. This thing is also MASSIVE and you won’t even be able to drive it in some parts of the map.
AFAIK the 105mm gun in O-I is just WoT fiction. The 150mm was the only cannon intended for it. Although that 105 has some impressive stats…
The 105 mm Type 92 was considered irl, but would likely only be implemented alongside other overhauls that never came to fruition. Hard to say that it would’ve look like atp. It’s listed here as 100 mm since they usually rounded their 105 mm guns to 10 cm.
That being said, the Type 92 and Type 96 did share a breech, so interchanging the two would actually be pretty easy. But I’d assume the one we’d get in game would match the drawings with the 15 cm Type 96 since that was the plan when the partial prototype was made, and is the most documented variant.
I would be careful using this alone as a source. US documentation of Japanese ammunition in general is routinely incorrect, either due to errors in measuring or recording, or just because they were basing data off limited sample sizes. This particular intelligence report was used as the basis for an incorrect change to the Ho-Ro’s 15 cm ammunition which was only semi-recently fixed. Other subsequent bug reports using this source have been denied since it does conflict with other sources, including other instance of US documentation on Japanese ammunition.
It’s not always wrong, but most numbers you pull from it should at least be cross checked with values from other US reports. Japanese sources are harder to come by sadly, though some exist.
It’s quite possible this round was compatible with the Type 96 howitzer, but I’m not 100% confident of this given the only source of this I’ve seen stating such, and we have no type designation to go off for cross referencing. This is the closest listing I could find elsewhere:

Considering the cavity occupies such a huge portion of the shell’s volume, and that the explosives account for at minimum 10% of the round’s mass, it would be classified as SAP and would be hit with a very unfavorable penetration modifier that would drop the penetration to just 55 mm assuming the mass figures are accurate, and that 540 m/s is the correct velocity, however…
I would not expect the velocity to be 540 m/s given its around 9 kg heavier than its usual 36 kg ammunition. They can only increase propellent to such an extent for a lower velocity howitzers without causing excessive barrel wear or risk of damage, I’d expect it be fired with a similar charge to the lighter, common 36 kg rounds, resulting in a sub-540 m/s velocity, likely in the ballpark of 485 m/s.
m₁(v₁)² = m₂(v₂)²
36(540)² = 44.54(v₂)²
v₂ = ~485
Laurelix’s post you linked even lists the unnamed round at just 500 m/s, though for all I know, he just pulled this value from thin air. He’s a rather infamous and an excessively self-confident individual to put it politely. He has presented his calculated ammunition performance as the definitive performance in the past, so take many of his claims with a grain of salt.
For instance, all of the penetration values he listed in the post you linked can be found by just plugging in the masses and velocities he gave into the Gajin DeMarre calculator, adding the filler, and enabling the APCBC modifier regardless of shell type.
If we entertain the 500 m/s figure with the likely SAP modifier, the penetration drops to just 44 mm in-game.
Random fun fact too:
This old meme is actually of a Thai Type 69 being dumped into the ocean for use as an artificial reef.
Hello all, please support my suggestion! I worked pretty hard and I couldn’t have done it without help :) 
Erm, text wall!?
That’s a very cool suggestion, I really hope it gets added.
