Thread: First attempt at necking down 308 to 7mm08

Originally Posted by leathel

I think you will find even right down there is still a step as the shoulder length is different?

But yes shell holder in contact with the die is step one

Measure the diameter at the base of the case is also a good idea if they have been fired in another rifle.... black marker covers this too

Yeah that's what I've found. My shell holder hits the bottom of the die, I can't lower it any lower (apparently the Lee case holders are a bit deeper than standard) so I can't get the shell right up in there. The shoulders are different.

I'm gonna have to track down something that'll help me sort that shoulder out.

Originally Posted by RimfireNZ

Yeah that's what I've found. My shell holder hits the bottom of the die, I can't lower it any lower (apparently the Lee case holders are a bit deeper than standard) so I can't get the shell right up in there. The shoulders are different.

I'm gonna have to track down something that'll help me sort that shoulder out.

Where in Auckland are you?

Originally Posted by dogmatix

Where in Auckland are you?

Pukekohe, but I work in the CBD

Originally Posted by RimfireNZ

My shell holder hits the bottom of the die, I can't lower it any lower.

Skim a couple thou off the top of the shell-holder, or off the bottom of the FL die. Preferably the former.

Ray.

Originally Posted by RimfireNZ

Yeah that's what I've found. My shell holder hits the bottom of the die, I can't lower it any lower (apparently the Lee case holders are a bit deeper than standard) so I can't get the shell right up in there. The shoulders are different.

I'm gonna have to track down something that'll help me sort that shoulder out.

SO in setting up your press you have:
-Lifted the ram to full extension with the shell holder in the top
-Screwed the die in till it touches the shellholder
-Lowered the ram and then turned the die in a further half a turn or more?

Have you trimmed the case prior to sizing to 7mm08?

Originally Posted by Wildman

SO in setting up your press you have:
-Lifted the ram to full extension with the shell holder in the top
-Screwed the die in till it touches the shellholder
-Lowered the ram and then turned the die in a further half a turn or more?

Have you trimmed the case prior to sizing to 7mm08?

Yes I've set up the die correctly as you mentioned above. I haven't trimmed the brass though as 308 will end up shorter once necked down.