Unknown round


#1

Hello IAA members,
I Have a cartridge with these dimensions of; All dims are approx. ± .002…
Bullet Dia.= .260 (6.60)
Shoulder Dia.= .416 (10.56)
Body Dia.= .472-.473 (11.99-12.02)
Case Length= 1.992-1.994 (50.59-50.65)
AOL= 2.998 (76.17)
The head stamp area is slightly convexed, and there are three large indentations approx .075 (1.90) in length around the primer at 12:00, 4:00 & 8:00…
On this side of town I can’t seem to find any thing, so I hope you can.
Thanks,
Larry


#2

Larry

What’s the rim diameter?

Sounds like a 6.5 Arisaka except for the body diameter which would only be .455 on the Jap.

No headstamp?

Ray


#3

I’d say 6,5 mm Jap too

You probably measured the rim diam,that is about .466" instead of body diam

All the other data match the Jap round,the un marked and 3-way crimped base match too