Brass Spring Back?

[flmason]

Hi All,
    Have been thinking that a simple neck sizing die could be made just by drilling a hole in block of steel... but I'm wondering how the dimensions should be calculated? Is there a rule of thumb for brass springback?

Clearly on could start with a handful of fired brass, drill the hole too small and ream/hone until you get what you want... but was wondering what "standard" die dimensions might be?

[Ranger99]

seems like a lot of trouble when
one can buy a ready-to-use die
for 10.00 + - used
it would work for sure, basically that's
all a die is- a pre-shaped metal case squeezer

[flmason]

seems like a lot of trouble when
one can buy a ready-to-use die
for 10.00 + - used
it would work for sure, basically that's
all a die is- a pre-shaped metal case squeezer

Oh sure, no doubt, practically speaking it's a cheaper to buy than build item. And I doubt I could ever get to the quality of purpose made factory tooling.

It's more just a desire to have the knowledge and ability.

My grandfather on one side was a tool and die maker, so I guess it's probably a built in urge, LOL!

I'm pretty sure my father had a micrometer in my hands by the time I was 8. LOL!

[Ranger99]

that's how richard lee started his
company. he got tired of being bent
over on the cost of his reloading tools.
then his hobby became his business.

[flmason]

that's how richard lee started his
company. he got tired of being bent
over on the cost of his reloading tools.
then his hobby became his business.

That's an interesting thought. I do buy the Lee Loader Classic for each caliber I have. Still looking for some of the out of print ones I need. Ebay prices have gone crazy on them, particularly the shotgun kits. In all reality the Lee Hand Press and standard dies is a better way to go.

No aspirations of making a biz out of it. Was just thinking of replicating the function of Lee Loaders as will, so to speak.

I'm thinking for cartridges with literally straight necks, like 30-06, it's literally just the correct side hole in some metal. I guess I'll have to tinker around with it at some point. Seems like an interesting experiment.

[Ranger99]

oh no doubt if one has the tools and
time and the want-to, it can be done.
at one time i would and could make
most anything and had access to machines
and materials. now i'm at the journeyman
elderly stage and if i can't do it with a
drill press or welder or grinder, i don't
jack with it or i'll buy a ready-made.

[roper]

Hi All,
    Have been thinking that a simple neck sizing die could be made just by drilling a hole in block of steel... but I'm wondering how the dimensions should be calculated? Is there a rule of thumb for brass springback?

Clearly on could start with a handful of fired brass, drill the hole too small and ream/hone until you get what you want... but was wondering what "standard" die dimensions might be?

Friend of mine made these 243 neck dies for me

http://www.noslerreloading.com/phpBB2/viewtopic.php?f=4&t=11616


What most do is buy a reamer in what they want and you can also buy die blanks.  I've got one neck die that gunsmith make from end of barrel he cut off it was a heavy contour.

http://www.noslerreloading.com/phpBB2/viewtopic.php?f=4&t=11618

[bigvarmnt]

"Journeyman Elderly Stage"  Think I'm qualified


Sounds better than what I've been calling it


Blind, Bald, Deaf, Constant aches and pains, and C.R.S.


I'll have to stick with what others make.

[flmason]

Hi All,
    Have been thinking that a simple neck sizing die could be made just by drilling a hole in block of steel... but I'm wondering how the dimensions should be calculated? Is there a rule of thumb for brass springback?

Clearly on could start with a handful of fired brass, drill the hole too small and ream/hone until you get what you want... but was wondering what "standard" die dimensions might be?

Friend of mine made these 243 neck dies for me

http://www.noslerreloading.com/phpBB2/viewtopic.php?f=4&t=11616


What most do is buy a reamer in what they want and you can also buy die blanks.  I've got one neck die that gunsmith make from end of barrel he cut off it was a heavy contour.

http://www.noslerreloading.com/phpBB2/viewtopic.php?f=4&t=11618

Any idea what the calculation is for the diameter of the die vrs. the expected brass diameter that you end up with.

Ultimately that's the whole trick... what size/shape in the die gets the dimenesions you want when the brass is pulled back out.