Go Back   The Hunter's Life > GUNS & AMMO > FIREARMS & OPTICS
Thread Tools Display Modes
Prev Previous Post   Next Post Next

Re: 12ga,8ga,4ga FH; 585HE/700HE; Big Bores--
Old 03-05-2018, 12:50 AM
hubel458 hubel458 is offline
Family Member
Join Date: Jan 2008
Location: Brinton, MI
Posts: 123
hubel458 is on a distinguished road
Default Re: 12ga,8ga,4ga FH; 585HE/700HE; Big Bores--

Here is a drawing depicting the layout of thick and thin sided cases,
like my 585/375/416 HE thin sided ones and the thick one in picture.

And my 585 case is not perfect, as where it transitions from the
heavier corner to the side it isn't gradual, so case separates there
shortening case life. There are others made that way including brand X.
The dotted line is what it should be............

Others have sent cases to section and look at, that are built thick sided and they
stick also for the folks, If a longer case with about 5 sq in of side surface sticks and
don't spring back, the coefficient of friction is about .01 then the pull needed to move
it is 2500-3500 lbs..That is for big cases with normal amount of slant to the sides.

Here is picture of six nyati and gibbs size cases sectioned.. the5th one is present 585 HE
and 6th is thick sided version. 1st 600 OK which essentially nyati basic case left straight, belt added

In the picture the nyati gma is one we built most of our first 585s on. Before we had factory run.
Reworking made it in size that is my 585 HE, but that brass had the sides of perfect thickness,
not too thick, but thin without sharp transition my new factory 585s had, they last forever as 585s......

Fourth one is an older nyati case I used to make about 10 of my 585s from,had thin sides, heavy corner
and sharp transition from the corner, tested 20 years ago, and they would separate after 4-6 hot loads
as 585s, my factory 585 with right powders, as a 585 will get 10 hot loads, and necked down to
416/375 4- 6 hot loads, right powders used, Moderate 577 equivalent, factory 585 at least 20 loads..Ed.
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
SKB XL 12ga. Abolt.270 FIREARMS & OPTICS 3 07-12-2008 09:45 AM
12ga, overbore or no? subsonic FIREARMS & OPTICS 9 01-08-2008 05:21 AM
Anyone heard from 12ga? Dragonfly THE CAMPFIRE 7 12-20-2005 06:19 PM
An incomplete line-up for those that like quarter-bores. gitano RELOADING 16 02-17-2005 01:30 PM
Saiga 12Ga. teddy12b FIREARMS & OPTICS 4 12-17-2004 08:41 PM

All times are GMT -5. The time now is 08:51 AM.

vBulletin skin developed by: eXtremepixels
Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.