Headstamp unknown & a little help 7.7 Arisaka

[RBHarter]

It irritates that the other place censures 7.7&6.5 Jap like they were called for 100 yrs.......
Moving alo
I don't know what to make of this one .


I have 16 pieces of "known" 7.7 brass . I thought this might have Canadian at first but then I saw an old IMI reference that resembled that 12:00 Hebrew place and the 6 point stars . In either case weird unless maybe they were running rimless 303 .....

I currently have a bubba truck late war laminated 7.7 (99?) . It's fitted with Williams ramp and sort of a buckhorn rear . I didn't try a 06' case as I recall , but I did get a throat slug good and stuck . I've had it 12 yr or so and haven't done a thing with it yet . Well except getting a slug stuck .

As I recall the Japs are like the Russians with a fast twist in the 8.5 range . So I'm thinking at the moment about the 312-155 or paper patching the NOE 230 if it is a fat bore . IMR 4350 and Unique or maybe Red Dot for squirrel slayer loads .

Open to suggestions of course and any advise about the platform . It's ground off but I suspect it's been shot a fair bit with jacketed nominal loads so the danger of the chipping or breaking/fracture is probably in the past . I'll probably set up this for one of the girls to shoot next year . The oldest will be 12 shortly and I think ready to hunt this year .

 

[RicinYakima]

IMHO, it is 8MM Mauser, IMI (Israelite) made, converted to 7.7.

 

[RBHarter]

I guess I'll have to run it in a die and find out .

 

[fiver]

Headstamp Codes – International Ammunition Association

www.cartridgecollectors.org

maybe you can find it here or contact them and send a couple of pictures.
if nothing else they might be interested in getting one as a unique sample or at least seeing it could point you in the right direction.

if you show a pic from the side it could easily be identified as either a 7.7 or an 8mm cartridge, they are pretty easily identified just by looking at them.
not to say it hasn't been changed from a 7.7 to an 8mm since at one time they were both pretty hard to get.

 

[358156 hp]

8mm Mauser is deceptively close to 7.7 Arisaka, but the neck is a skosh bigger, and the shoulder is a little further back. I say this because I was given a bunch of 8mm brass and ran then through my 7.7 dies and loaded them. The case neck was blown forward and I ruined (bent) my firing pin body and had to buy a complete surplus bolt to get a replacement firing pin. I pulled the rest of that batch down and recycled everything. Side by side, the resized 8mm cases looked almost perfect. Almost.

 

[fiver]

there was some almost good 7 mauser stuff that was factory made from 7.65 Argie brass and set to RSA during the Boer wars.
the necks were pretty weird looking from what I understand
I guess [shrug] you kinda gotta do whatever sometimes to make something go bang.

 

[Bret4207]

Possible that the Arisakas collected from Japan after the war were sold to another country (Israel?) for guard duty, etc. I've read about other nations doing that, not sure if it happened with the Arisaka/Israel equation.

 

[RBHarter]

I had considered that .

The 12:00 mark is best described as and inverted , U(lazy y)U , that appears as and early IMI but as a lazy y U inverted as a Hebrew script or with the 2 Stars of David but not the 3 letter 2 star and no mention of the edge blocks or the IV or VI . If it's Israeli the the 1954 could be 6 years but I may be stretching some too .

I did a bunch of Arisaka digging when I aquired it but only to the point of figure out what I had and what it's original capacity was . Catalogued under just because a pre-war 98 will take 100kpsi doesn't mean it's a good idea to feed it steady diet 65-68kpsi loads . Just because it's designed to strip the barrel threads before the receiver let's go ........... Late war stuff ....... No certainty .

 

[Bret4207]

Parker Ackley changed a lot of minds on the Arisaka. I have to say, my little 6.5x257has changed my mind on the action. I even like the safety, but my rifle has been modified quite a lot. The ugly little thing weighs just about 6lbs, handles like a 4 wt fly rod and seems to want to shoot pretty darn decent for a mil-surp in a Bishop Mannlicher stock.