2 Attachment(s)
Re: First attempt at necking down 308 to 7mm08
308 fed brass
308 left 243 center and right.
Attachment 6327
Attachment 6328
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Re: First attempt at necking down 308 to 7mm08
I don't need to neck turn this brass in my(the wifes) rifle.
Neck turn is more about neck to chamber clearance allowing shell to release bullet and not blow up in your face.
Im right on the limit of having to neck turn this brass. Fired in the rifle a spent case will lightly hold a bullet before sizing.
I think you probably have another die or brass prep issue.
Get your longest bit of brass in press right up and wind seating die down till it touches and then up and half a turn.
chamfer all your brass generously inside and a touch outside.
Wire brush in a drill all your case mouths.
See how that goes :)
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First attempt at necking down 308 to 7mm08
Quote:
Originally Posted by
RimfireNZ
Damn it, I was in a rush so no didn't chamfer it. There's part of the problem. I was doing half a dozen other things after coming back from the range and dropping a bullet in was an afterthought. And no the seating die isn't set too low on this one.
When you actually site a projectile in the necked down 308 brass, then do the same with the 7mm08 round you can really see that the round isn't gonna fit in the necked down 308. It needs trimming on the inside. I'll measure it up tomorrow when I'm back over there.
My house is too small so my reloading room is at my folks in town.
Unless you are not using your expander in the FL die you will always need to outside turn if things are tight. 243 7-08 308 all going to form internally to the expander used not the die. Something looks proper fucked up with your cases. What's dies?
Re: First attempt at necking down 308 to 7mm08
There is your problem:)
Fl die sizes down undersize then decapping rod/expander pulls it back up to size on out stroke.
Your die must have adjustment for the rod?
Set it down until it only just removes primer. It shouldn't bottom out in case.
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Re: First attempt at necking down 308 to 7mm08
Also make sure necks are well lubed inside or expander can pull shoulder forward giving you lack of headspace issues all over again.
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