ASSRA Forum › General › Reloading the Single Shot Rifle › A case-forming challenge
(Moderator Group: Moderator)
‹ Previous Topic | Next Topic ›
Page Index Toggle Pages: 1 [2] 3  Send TopicPrint
Very Hot Topic (More than 25 Replies) A case-forming challenge (Read 8071 times)
Patrick Chadwick
Participating Member
*
Offline



Posts: 40
Joined: Oct 5th, 2020
Re: A case-forming challenge
Reply #15 - Oct 29th, 2020 at 5:21am
Print Post  
oneatatime wrote on Oct 28th, 2020 at 2:07pm:
Patrick, now you have to show us the rifle!


"... By popular demand ..."

Here it is. A Peterlongo target rifle. More to come, but first of all I want to deal with the case-forming and performance.
« Last Edit: Oct 29th, 2020 at 5:40am by Patrick Chadwick »  
Back to top
 
IP Logged
 
Patrick Chadwick
Participating Member
*
Offline



Posts: 40
Joined: Oct 5th, 2020
Re: A case-forming challenge
Reply #16 - Oct 29th, 2020 at 5:37am
Print Post  
OK guys, I have to admit the posting of pics in this forum is a PITA. They come out too large, or fuzzy, or too large AND fuzzy.

I will replace them if I ever find out the secret of how to do it right!
  
Back to top
 
IP Logged
 
ww
Full Member
***
Offline



Posts: 176
Joined: Apr 18th, 2017
Re: A case-forming challenge
Reply #17 - Oct 29th, 2020 at 9:26am
Print Post  
As Sergeant Shultz would say ,velly  interesting. 
I have a rifle that I recently purchased that appears to be chambered in one of the 9.5X47R chamberings.  The chamber cast shows a neck diameter of .412 . Bertram 9.5X47R  brass has a neck diameter of. 405 and will hand seat a .374 stop-ring bullit. I would prefer to be able too load without working the necks that much. 
I've tried making brass from 8X50 lebell but necking up thins the necks even more. The next try will be with 44-77 brass from Buffalo Arms with a .513 base diameter made from 50-110 star-line head stamped brass. Thinking that these would end up with a thicker neck wall. I'm also swaging a couple of 50-90 star-line down to .515 base (PIA) and not much cheaper to see how the necks compare .
I would be interested in what the neck wall thickness increases necking down the 45-70 brass. I've made 43 Spanish using 45-90 star-line brass  using the tape (1/4 wide Teflon) and also using a 1/64 half inch dia O-ring. I think the O-ring worked better for centering and head-space the sholder. 
I need to find dies. Both forming and loading. My thoughts are CH4D and not sure if I should send a chamber cast or fire form 2 of my Bertram or order from their list.
My barrel is marked WILH: FRIEDLEIN. STOCKHIEM.  I. / OD: there are no other markings.
It will be an interesting winter project. 
I'll be watching your progress. 
WW
« Last Edit: Oct 29th, 2020 at 12:41pm by ww »  
Back to top
 
IP Logged
 
Patrick Chadwick
Participating Member
*
Offline



Posts: 40
Joined: Oct 5th, 2020
Re: A case-forming challenge
Reply #18 - Oct 29th, 2020 at 10:29am
Print Post  
"I have a rifle that I recently purchased that appears to be chambered in one of the 9.5X47R chamberings.  The chamber cast shows a neck diameter of .412 . Bertram 9.5X47R  brass has a neck diameter of. 405 and will hand seat a .374 stop-ring bullit. I would prefer to be able too load without working the necks that much."

I have a rifle like that - the seller thought it was 9.5x47R, but it turned out to be 9.6x47R Stahl - not exactly an everyday caliber!

I also think I have the answer to the neck problem. It will take a couple of days to make pics and finagle them onto this forum in a useful size.

In the meantime, if you could post detailed measurements of a fired case I might be able to hazard a guess as to the chambering of your rifle. Bore/groove dimensions taken from a slug driven through the barrel would aso be very useful.

Watch this space!

  
Back to top
 
IP Logged
 
Patrick Chadwick
Participating Member
*
Offline



Posts: 40
Joined: Oct 5th, 2020
Re: A case-forming challenge
Reply #19 - Oct 29th, 2020 at 10:35am
Print Post  
"My barrel is marked WILH: FRIEDLIN. STOKHEIM.  I. / OD:"

No such animal! But there is a Stockheim in Oberfranken.
(Ober - Franken = Upper Franconia) and I can't find any other.

Please post a good photo of the inscription!
« Last Edit: Oct 29th, 2020 at 10:40am by Patrick Chadwick »  
Back to top
 
IP Logged
 
ww
Full Member
***
Offline



Posts: 176
Joined: Apr 18th, 2017
Re: A case-forming challenge
Reply #20 - Oct 29th, 2020 at 12:35pm
Print Post  
We'll see if this works
WW
Spelling corrected.
WW
« Last Edit: Oct 29th, 2020 at 12:42pm by ww »  
Back to top
 
IP Logged
 
ww
Full Member
***
Offline



Posts: 176
Joined: Apr 18th, 2017
Re: A case-forming challenge
Reply #21 - Oct 29th, 2020 at 12:36pm
Print Post  
WW
  
Back to top
 
IP Logged
 
ww
Full Member
***
Offline



Posts: 176
Joined: Apr 18th, 2017
Re: A case-forming challenge
Reply #22 - Oct 29th, 2020 at 12:37pm
Print Post  
WW
  
Back to top
 
IP Logged
 
ww
Full Member
***
Offline



Posts: 176
Joined: Apr 18th, 2017
Re: A case-forming challenge
Reply #23 - Oct 29th, 2020 at 12:43pm
Print Post  
WW
  
Back to top
 
IP Logged
 
ww
Full Member
***
Offline



Posts: 176
Joined: Apr 18th, 2017
Re: A case-forming challenge
Reply #24 - Oct 29th, 2020 at 1:05pm
Print Post  
Patrick Chadwick wrote on Oct 29th, 2020 at 10:29am:
"I have a rifle that I recently purchased that appears to be chambered in one of the 9.5X47R chamberings.  The chamber cast shows a neck diameter of .412 . Bertram 9.5X47R  brass has a neck diameter of. 405 and will hand seat a .374 stop-ring bullit. I would prefer to be able too load without working the necks that much."

I have a rifle like that - the seller thought it was 9.5x47R, but it turned out to be 9.6x47R Stahl - not exactly an everyday caliber!

I also think I have the answer to the neck problem. It will take a couple of days to make pics and finagle them onto this forum in a useful size.

In the meantime, if you could post detailed measurements of a fired case I might be able to hazard a guess as to the chambering of your rifle. Bore/groove dimensions taken from a slug driven through the barrel would aso be very useful.

Watch this space!



The rifling appears ratchet type with a measurement across the flats of .362 and .375 across the high pints . I'll see if I can get a usable picture of it. The neck. 414 , sholder around 515 , base .520 , rim .600. Around 1.85  OAL 1.250 to the neck and .875 to the beginning of the sholder..
I'll keep watching .
WW
« Last Edit: Oct 29th, 2020 at 1:53pm by ww »  
Back to top
 
IP Logged
 
ww
Full Member
***
Offline



Posts: 176
Joined: Apr 18th, 2017
Re: A case-forming challenge
Reply #25 - Oct 29th, 2020 at 2:15pm
Print Post  
WW
  
Back to top
 
IP Logged
 
ww
Full Member
***
Offline



Posts: 176
Joined: Apr 18th, 2017
Re: A case-forming challenge
Reply #26 - Oct 29th, 2020 at 2:16pm
Print Post  
WW
  
Back to top
 
IP Logged
 
Patrick Chadwick
Participating Member
*
Offline



Posts: 40
Joined: Oct 5th, 2020
Re: A case-forming challenge
Reply #27 - Oct 29th, 2020 at 3:46pm
Print Post  
"The rifling appears ratchet type..." 

Looks like Henry rifling to me!
  
Back to top
 
IP Logged
 
Patrick Chadwick
Participating Member
*
Offline



Posts: 40
Joined: Oct 5th, 2020
Re: A case-forming challenge
Reply #28 - Oct 29th, 2020 at 3:53pm
Print Post  
"...measurement across the flats of .362 and .375 across the high pints . I'll see if I can get a usable picture of it. The neck. 414 , sholder around 515 , base .520 , rim .600. Around 1.85  OAL 1.250 to the neck and .875 to the beginning of the sholder..."

All the measurements need to be in mm, as whatever dimensional information is available, it's in mm. So here goes:

"...measurement across the flats of 9.195 mm and 9.525 across the high pints . I'll see if I can get a usable picture of it. The neck  10.52 , sholder around 13.08 , base 13.2 , rim 15.2. Around 46.99  OAL 31.75 to the neck and 22.22 to the beginning of the sholder..."

Now to search...
  
Back to top
 
IP Logged
 
ww
Full Member
***
Offline



Posts: 176
Joined: Apr 18th, 2017
Re: A case-forming challenge
Reply #29 - Oct 29th, 2020 at 4:47pm
Print Post  
After knowing where to look I'd agree on it having Martini Henry rifling. I learned something new. Thank you.
WW
  
Back to top
 
IP Logged
 
Page Index Toggle Pages: 1 [2] 3 
Send TopicPrint
‹ Previous Topic | Next Topic ›
 
  « Board Index ‹ Board Top  

ASSRA Forum » Powered by YaBB 2.6.12!
YaBB Forum Software © 2000-2024. All Rights Reserved.

Valid RSS Valid XHTML Valid CSS Powered by Perl Source Forge

Page completed in 0.6347 seconds.