Early Japanese 6.5mm CNCS Ball

Got this strange 6.5 Arisaka yesterday and I pulled the bullet out. The bullet is CNCS jacket!
I found some Japanese document mentioned this round as “type 38 CNCS Ball”


Any ideas about it’s purpose?
Thanks
Sheng

3 Likes

Interesting!
What is Elks saying about?

Seems Elks haven’t mentioned it in his book