I’ve read the Arisaka had the strongest action and it was almost impossible to blow one up.
Early war production was excellent. A friend of mine had one rechambered to 30-06.
At a large shooting range in Tulsa OK, a man came in while we were preparing for a competition. I noticed his rifle was an Arisaka with the top wood missing. From a prone position he began to knock over the steel targets hundreds of yards away with no problems.
Late war production were junk. A local business man had a late war production. Talk about a piece of junk.
During the '50s there was much discussion in the American Rifleman about the strength of these rifles, the general impression being that they were crap.
One gunsmith sent in a photo of an odd, elongated projectile s client had fired from his Arisaka. He had brought it, and the gun to the gunsmith, complaining that the gun kicked like a mule.
The smith inspected the gun and nearly had a heart attack. The gun was originally a 6.5MM and someone had rechambered it to a 30-06. That strange elongated slug was a 30-06 bullet swaged down to 26 caliber. The smith concluded the action was pretty damn strong. :-)
As a sidebar, those guns that still retained the chrysanthemum were valuable collectors items as they indicated they were captured. Those that were surrendered had the mum ground off.