I was watching a YouTube channel talking about US participation in post-WWII conflicts in eastern Asia. (He's a Marine that breaks down footage, claims, stories, etc...)
He said that during WWII, the Japanese chose to use the Arisaka chambered in 6.550mmSR Type 38 because of metal scarcity and a smaller round would "wound not kill."
I've heard of Japan utilizing non-lethal obstacles and devices to accomplish this, but I've never heard that it shaped their decision to use the Arisaka.
Thoughts for those who know about Japan in WWII?
ETA: Per Wiki, the Arisaka could also be chambered to shoot "the 7.758mm Type 99 cartridge, which is comparable in power to a modern .308 Winchester round" ... Was that a specialty used by snipers or in areas of heavier cover (like rain forests?)