Apparently, some cases rupture, and some don't, which was OK to the ammo maker. He has had the pistol for 20+ years and has a box of ammo made from 38 Special cases that gives a very strange look to the case after being shot. It was a bring back by a friend of his and then given/sold to him, but don't know any details of how the pistol was originally acquired. He has an original magazine with the wood circles (not sure what they are called) and a second magazine, which is the one we used. Yes, it is a Type 94 based on comparing the pistol to pictures of the 14 and 94. What model Nambu do you have- large or small trigger guard? Mine is the earlier pre-war model with the small guard. Potterfield got Midway USA off the ground, by providing 8mm Nambu brass, eventually sold out, and never followed up with more, years ago now. 38 Special, but you have to be a really devoted tinkerer to want to do it.
They have made Nambu brass from such cartridges as. But, I'd still go with just reloading them in the standard manner, and keep my eyes open for more brass at a better price. I'm just shooting in the dark here (that's a good one!) not having any real experience with Nambus (as I explained), but think you'd be more likely to experience split case necks from excessive resizing rather than separations. I've heard various theories such as the rounded ones were purposely made that way for better extraction under combat conditions, since they didn't reload the cases anyway, all the way to the chambering reamers were worn from wartime production.įifty cents each is expensive, but I think I paid $3.10 each for. I own several of these rifles, and have some that will produce sharply bottlenecked fired cases and some that will be rounded as is your pistol ammo. Brings to mind the experience I've had with. I don't really think it's enough of a neck to hold the bullet, but I also don't want to push the shoulder even farther back and risk case separations.Īre my fired cases "normal" for the 8 Nambu round? Any suggestion for where to set the shoulder?Ĭhambers in individual weapons can vary in shape and size. 013 from fired and created a little bit of a case neck. The partially sized case has the shoulder forward. 000 with the comparator, the fired case has the shoulder blown forward. That's where the problem comes in! The fired case looks like the case neck is pretty much gone. I am using a tool similar to a Sinclair Comparator to set the shoulder to the correct spot with the sizing die.
8MM NAMBU DIES HOW TO
Sorry, the pic is upside down and I don't know how to rotate it. Here are three cases, as bought (unfired?), fired by us, and partially sized (L to R with the pic right side up).
I was going to reload the fired brass and the case just doesn't look right. I found a set of dies for it and bought some factory brass, as well as formed some from 40 S&W and 357 Sig. A friend has an 8mm Nambu that hasn't been shot 20 times since it was brought back from overseas.
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