8mm Nambu Reloading

[jolague]

Scored a nice stash of 8mm Nambu 100 grain projectiles (1,100 count) and 250 pieces of brass I believe are manufactured from .357 SIg and .38 Super. I think I'm going to start off using Hornady shell plate number 8. Any wisdom on loading 8mm Nambu much appreciated. Still looking for some dies. Any leads?

 

[sniperdoc]

Have you tried RCBS for Dies?
They are my first recommendation

 

[jolague]

Have you tried RCBS for Dies?
They are my first recommendation

Yes, and they are out of production. Looking at Redding dies at the recommendation of RCBS.

 

[sniperdoc]

There's also Lee, if Redding doesn't have them.

 

[brenbuilds]

You will need RCBS shell holder #25

RCBS and CH4D made dies, but they are uncommon.

RCBS and Hornady will make custom dies for you, but it can be costly.

 

[jolague]

You will need RCBS shell holder #25

RCBS and CH4D made dies, but they are uncommon.

RCBS and Hornady will make custom dies for you, but it can be costly.

Yes, they can be costly. I went the Redding dies route.

 

[BeltFedEd]

jolague, Are you still looking for a set of 8mm Nambu dies?

 

[Expat74]

CH4D had/has dies. Yes, they can be made from .357 SIG but there's some trick involved pushing the cases a bit deeper in the die as normal to size the base of the case sufficiently. Try https://www.buffaloarms.com/8mm-nambu-brass-prop-hs-str8mmnambu.html for factory cases from HDS.
If you must form cases,

should give you some pointers. Hope this helps.