Has anyone ever made brass for a 375 JDJ ?

[ebb]

I friend of a friend has been left a contender in 375 JDJ after his father passed. He asked if I could load for it and I told him I would take a look. He brought me a set of dies, 444Marlin brass, a bunch of load data, some bullets and a neck turning tool. The barrel has no engraving that specifies a neck diameter. The pilot in the neck turner looks to be for a 375. I am unsure if it needs to have the necks turned or not. I am wondering if the dies will take the 444 Marlin all the way to 375.

 

[Punkinslinger]

It's been a few years since I have loaded for mine, if I remember correctly its a pretty simple process. I have the Hornady 375 JDJ dies, not sure on your barrel but if its a standard chamber by JD it should be a no turn neck. Hope this helps.

 

[JayHHI6818]

I friend of a friend has been left a contender in 375 JDJ after his father passed. He asked if I could load for it and I told him I would take a look. He brought me a set of dies, 444Marlin brass, a bunch of load data, some bullets and a neck turning tool. The barrel has no engraving that specifies a neck diameter. The pilot in the neck turner looks to be for a 375. I am unsure if it needs to have the necks turned or not. I am wondering if the dies will take the 444 Marlin all the way to 375.

Forming 375 JDJ brass is very simple. Make sure the 444 Case mouths are square. Can run it into a 44 Mag sizer die a little bit to square it. Lube 444 and run it into 375 JDJ sizer and you have a 375 JDJ case.

 

[ebb]

I don't know why there is a neck turner if it's a no turn neck. But I can't see why JDJ would where you would have to neck turn, it just makes it that much more work.