I'm so damn sick of fooling around necking up 284 brass to 375 for my rifle by using a .311 and .338 neck expanders, then the 375/284 die!! I just about pull my reloading bench over (yes, the inside of the necks are well lubed) Just now, out of 10 rounds, I got 4 good ones!! I know someone makes neck expanders with a range of, say, 30 to 35 cal or 30 to 375 cal. Where do I get one?????

Yes, several companies make tapered expanders, and you badly need one (or more). I think Redding is your best bet.

Have you tried using pistol powders and a filler to blow them out? I've done that with some 6.5mm up to 35 caliber, works well once you figure out the correct charge. I used red dot and a toilet paper wad, with a wax plug to keep it in place.

Buffalo Arms sells 284 Straight wall basic brass. 2.4" long will allow you to do big bores without worrying about thin necks.
284 Basic

[This message has been edited by DanD (edited 02-01-2002).]

OLD4X4,
I think your problem is because your attempting to do it in one jump. Sinclair has a tapered sizing button that works well for me. I's think the 8mm would be a good half way point. I hope that this helps.

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BigBob

Bigbob, I'm going from 284 to 311 to 338. The 338 to 375 jump is what's killing the cases. I've probably done 2-300 cases.
The thin necks aren't a problem because I had RCBS make me a custom die, but that 284 cylindrical is a good idea. Also, I checked the Redding website and found the tapered expanders. Thanks

[This message has been edited by old4x4 (edited 02-01-2002).]

[This message has been edited by old4x4 (edited 02-01-2002).]