8mm neck die

This section is for reloading and ammunition only, all loads found in here are used strictly at your own risk, if in doubt ask again.
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should treated as suspect and not used.

Moderator: dromia

Forum rules
All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.

Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
Message
Author
User avatar
Alpha1
Posts: 8627
Joined: Fri Nov 12, 2010 8:27 pm
Contact:

8mm neck die

#1 Post by Alpha1 »

This is a interesting one I was neck sizing some 8mm cases I had sized about ten cases with no problem these cases have been re loaded before so I knew they were not berdan primed so when I felt a bit of resistance I just exerted a bit more force and this was the result the de capping pin snapped off.
Only thing I can think of is maybe the button had loosened and the decapping pin was off centre.

I am taking it in to work tomorrow I will turn the end down were its snapped off and re thread it so hope fully I can fix it. Slowed me down a bit though.
I have noticed lately that neck dies etc. for milsurp stuff seem to be getting harder to get hold off. I need to take more care off my kit me thinks.
001.JPG
User avatar
dromia
Site Admin
Posts: 20225
Joined: Sat Nov 06, 2010 4:57 am
Home club or Range: The Highlands of Scotland. Cycling Proficiency 1964. Felton & District rifle club. Teesdale Pistol and Rifle club.
Location: Sutherland and Co Durham
Contact:

Re: 8mm neck die

#2 Post by dromia »

Rule 1, never force things find out why they need extra force and fix it.

Rule 2, get rid of that damned expander button! It does your cases and reloading no favours.
Image

Come on Bambi get some

Imperial Good Metric Bad
Analogue Good Digital Bad

Fecking stones

Real farmers don't need subsidies

Cow's farts matter!

For fine firearms and requisites visit

http://www.pukkabundhooks.com/
User avatar
dromia
Site Admin
Posts: 20225
Joined: Sat Nov 06, 2010 4:57 am
Home club or Range: The Highlands of Scotland. Cycling Proficiency 1964. Felton & District rifle club. Teesdale Pistol and Rifle club.
Location: Sutherland and Co Durham
Contact:

Re: 8mm neck die

#3 Post by dromia »

Time you learned how to fettle, set up and use the Lee collet dies.
Image

Come on Bambi get some

Imperial Good Metric Bad
Analogue Good Digital Bad

Fecking stones

Real farmers don't need subsidies

Cow's farts matter!

For fine firearms and requisites visit

http://www.pukkabundhooks.com/
User avatar
Alpha1
Posts: 8627
Joined: Fri Nov 12, 2010 8:27 pm
Contact:

Re: 8mm neck die

#4 Post by Alpha1 »

I tried neck sizing with out the expander button and it works OK if you are using condom bullets.
But what I have found is that if I try to expand the necks for cast some of the case mouths buckle.
I am not against the Lee neck dies I have one or two.
User avatar
dromia
Site Admin
Posts: 20225
Joined: Sat Nov 06, 2010 4:57 am
Home club or Range: The Highlands of Scotland. Cycling Proficiency 1964. Felton & District rifle club. Teesdale Pistol and Rifle club.
Location: Sutherland and Co Durham
Contact:

Re: 8mm neck die

#5 Post by dromia »

Alpha1 wrote: But what I have found is that if I try to expand the necks for cast some of the case mouths buckle.

????????!

What expanding die are you using?

That shouldn't happen unless the case isn't aligned with the die and the case mouth is catching on the base of the expander plug and you are forcing the ram up. Don't you feel the need to exert extra pressure when the case buckles. That is a sign to stop and check what is going on.

A bigger hammer rarely works in hand loading.
Image

Come on Bambi get some

Imperial Good Metric Bad
Analogue Good Digital Bad

Fecking stones

Real farmers don't need subsidies

Cow's farts matter!

For fine firearms and requisites visit

http://www.pukkabundhooks.com/
User avatar
Alpha1
Posts: 8627
Joined: Fri Nov 12, 2010 8:27 pm
Contact:

Re: 8mm neck die

#6 Post by Alpha1 »

I am using a Lyman M die.
User avatar
dromia
Site Admin
Posts: 20225
Joined: Sat Nov 06, 2010 4:57 am
Home club or Range: The Highlands of Scotland. Cycling Proficiency 1964. Felton & District rifle club. Teesdale Pistol and Rifle club.
Location: Sutherland and Co Durham
Contact:

Re: 8mm neck die

#7 Post by dromia »

Where is the "buckling" happening?
Image

Come on Bambi get some

Imperial Good Metric Bad
Analogue Good Digital Bad

Fecking stones

Real farmers don't need subsidies

Cow's farts matter!

For fine firearms and requisites visit

http://www.pukkabundhooks.com/
User avatar
Alpha1
Posts: 8627
Joined: Fri Nov 12, 2010 8:27 pm
Contact:

Re: 8mm neck die

#8 Post by Alpha1 »

Its at the start of sizing I dont think the cases are centering the lip of the case catches on one side and folds it back.
I have been rotating the cases by hand to try and centre the cases before expanding this seems to help.
User avatar
dromia
Site Admin
Posts: 20225
Joined: Sat Nov 06, 2010 4:57 am
Home club or Range: The Highlands of Scotland. Cycling Proficiency 1964. Felton & District rifle club. Teesdale Pistol and Rifle club.
Location: Sutherland and Co Durham
Contact:

Re: 8mm neck die

#9 Post by dromia »

Yep, misalignment.

Check that the expander spud inside the "M" die body hasn't unscrewed from the setting stem inside the "M" die. If so tighten it up and screw locktite if necessary.
Image

Come on Bambi get some

Imperial Good Metric Bad
Analogue Good Digital Bad

Fecking stones

Real farmers don't need subsidies

Cow's farts matter!

For fine firearms and requisites visit

http://www.pukkabundhooks.com/
User avatar
Alpha1
Posts: 8627
Joined: Fri Nov 12, 2010 8:27 pm
Contact:

Re: 8mm neck die

#10 Post by Alpha1 »

We fixed it.
Ground the end off then silver soldered the end. Turned it down in a lathe and re cut the thread.
001.JPG
001.JPG (28.73 KiB) Viewed 1011 times
8MM 003.JPG
Post Reply

Who is online

Users browsing this forum: No registered users and 2 guests