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Hi all as posted in the show and tell, I have an old J bore Gew88 rifle that I wish to get going.
I have slugged the bore and it slugs at .316 (Czech issued barrel)

Now I have the boolit that I want, that I can run through a custom .317 sizer and gas checked.
This issue now as you may guess is the dies, I have 8x57 Lee dies, but of course the mouth is opened too wide , thus the boolit being too lose.

Does anyone have any suggestions please on what options (if any) I can do, new dies, etc

Thanks

Polish the expander = smaller expander = less case neck expansion = less wobbly bullet seating

Personally I would use the 8.57 dies with out the expander rod as a body die. I would make a bushing neck die to neck the case down to .316 then use a expander to open the case mouth up to .317.
I have never re loaded for this caliber my self. Adam is probably your man.

I use CH-4D dies for this calibre.

Never use expander plugs they are an abomination. Use a suitably sized M die expander

dromia wrote:I use CH-4D dies for this calibre.

Never use expander plugs they are an abomination. Use a suitably sized M die expander

Hi thanks all for help, where could I get the M die expander please ?

This should be near enough.

http://noebulletmolds.com/NV/product_in ... ts_id=1515

dromia wrote:This should be near enough.

http://noebulletmolds.com/NV/product_in ... ts_id=1515

Hi thanks very much for this, what size do I go for please ?

It says "Use a expander that is .001" over your bullet size for best fit", but I am using cast bullets, is this still the case ?

The one in the link .318 that Adam posted should be OK.

Hi I have purchased that part, so I guess I need to buy the Lee Universal Neck Expanding die and fit this in ?

What happens to my 8x57 brass that is already sized to .323 , can I run them through this ?