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Very Hot Topic (More than 25 Replies) 8.15x46r stop ring bullet info (Read 13093 times)
Dales
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8.15x46r stop ring bullet info
Nov 25th, 2013 at 8:13pm
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I purchased a German schuetzen rifle this week end and wondered if anyone has tried loading with the stop ring bullet and has any info they would like to share. I ordered a stop ring mould from NOE to try.
I have owned a couple of these rifles in the past but breach seated, thought I would try something new (to me).

Thanks Dale
  
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westerner
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Re: 8.15x46r stop ring bullet info
Reply #1 - Nov 25th, 2013 at 11:37pm
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I have one stop ring mold by Frank Zika. Use it in both my German target rifles.  My rifles shoot best when the base of the bullet fits a fired case close, in the neck.  When the bullet is a loose fit, get leading and poor accuracy. Have found 13.5 gr IMR 4227 very accurate.  Also load BP with the FZ stop ring bullet. Think I use about 34gr Swiss 1 1/2 and a Walters wad. Also use the Hudson 319-289 bullet with BP. Drop the bullet on the wad and good to go.


               Joe.
  

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CaryT
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Re: 8.15x46r stop ring bullet info
Reply #2 - Nov 26th, 2013 at 12:33am
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Hey Joe;
With the BP, what kind of accuracy at what distance?
Thanks
Cary
  
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Re: 8.15x46r stop ring bullet info
Reply #3 - Nov 26th, 2013 at 12:38am
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Never tested it with a scope or aperture and peep.   3-4 inch groups at 200 yards with pinhead and diopter sights.  Biggi does pretty well with it OH at 200.

   Joe.
  

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Chickenthief
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Re: 8.15x46r stop ring bullet info
Reply #4 - Nov 26th, 2013 at 3:01am
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I have tried 2 kinds of stopring in the 8.15x46R.
My Mauser is special in that it has a biiiiiiiig long throat and .300 bore/.315 groove.
So i got a stopring that is .317 at the nose and use it in cases trimmed so the boolit sits on the rifling. Shoots better than i can.

I then got a stopring that is a borerider on the front part. That one i loaded in full length 30-30 cases so the stopring is as close to the rifling as i can get it. The jury is still out on this one!

Both is the same design from Tom at accuratemolds.com

From the top:
8.15x46R (normal length)
8.15x46R (full length 30-30)
32-40 (from 30-30)
32-40 (original case)

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Fred Boulton
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Re: 8.15x46r stop ring bullet info
Reply #5 - Nov 26th, 2013 at 3:16am
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I use the NEI stop ring bullet in my Buechel Meister. The usual load of 13.6grn of 4227 is very accurate at 100yds, but increasing the range to 200 and some vertical stringing is noticed. I now use 14.5grn of 4227.
Fred
  
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QuestionableMaynard8130
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Re: 8.15x46r stop ring bullet info
Reply #6 - Nov 26th, 2013 at 9:45pm
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I've become convinced that you really need to have a stop-ring bullet designed to fit your chamber if you are going to try that route and shoot the rifle the way the German/Swiss did.   They had a really wide selection of factory swedged bullets to choose from to fit their chamber and throat design; and the gunsmith who put their rifle together probably told them which one was the best match for the way he cut the chamber.   
That info is long gone on the rifles as we find them and simply buying what NEI or Buffalo offers over the counter is in my opinion a long shot. 
I've tried the Buffalo S-R bullet in 3 different rifles with less than mediocre accuracy.  Nothing is  exactly wrong with the bullet or NEI's either, they are  good bullets as long as they fit your  rifle properly.   
I'm making several chamber throat and entry rifling casts of my rifle and I'll be having Tom at Accurate Mold cut one that will fill the space between case mouth and the entry rifling solidly with ring diameter to create a good gas seal.    From the looks of the first couple casts it looks like I might benefit from a longer than standard case----the full length 32 win sp case might be a good fit for starters at least I'll use it to find what length I need----46/47MM seems too short so far.
  

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Dales
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Re: 8.15x46r stop ring bullet info
Reply #7 - Nov 26th, 2013 at 11:28pm
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Thanks for the imput. Has any one tried the NOE mould?
What case do you find best to reform 30-30 ,32-40,38-55?
  
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Re: 8.15x46r stop ring bullet info
Reply #8 - Nov 26th, 2013 at 11:36pm
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30-30 works excellent. Some rifles may require a smaller rim diameter.  Turn mine down in the lathe.

        Joe. 

  

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QuestionableMaynard8130
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Re: 8.15x46r stop ring bullet info
Reply #9 - Nov 27th, 2013 at 8:07am
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the middle two cases in the above photo intrigue me.  My new Aydt chamber casting show no clear evidence of where the mouth edge of an 8.15x46r case would be, I cant see one or feel one.  but a bit farther ahead I can feel a slight "edge" or ramped step.  Strictly based on visuals, It looks like the 2nd round down, call it a "8.15r-long" or something like it would fit.

I have heard of guys rechambering old war-trophy schuetzens for common american cartridges,   32 win sp, comes to mind.

If someone ran a 32-40 reamer into an 8.15x46r chamber would it create a chamber for a case like that an "8.15x??R long"?

Or have I just not had enough coffee to be thinking straight this morning Wink

addendum:  dang just remembered I have a batch of  full length 32 win special that have been resized into my 8.15x46r die, but not trimmed to 8.15 length yet.
I just chambered one into the Aydt and it chambered just fine; and the Aydt block closed perfectly on the unbeveled rim.    Shocked  ?????????????
  

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Re: 8.15x46r stop ring bullet info
Reply #10 - Nov 27th, 2013 at 8:32am
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I have a stalking rifle that someone tried to re chamber to 32-40 from 8.15x46r but 32-40 reamer did not clean out old chamber. Does not shoot to bad with 32-40 case but fired rounds look strange.
  
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Re: 8.15x46r stop ring bullet info
Reply #11 - Nov 27th, 2013 at 9:36am
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QuestionableMaynard8130 wrote on Nov 27th, 2013 at 8:07am:
the middle two cases in the above photo intrigue me.  My new Aydt chamber casting show no clear evidence of where the mouth edge of an 8.15x46r case would be, I cant see one or feel one.  but a bit farther ahead I can feel a slight "edge" or ramped step.  Strictly based on visuals, It looks like the 2nd round down, call it a "8.15r-long" or something like it would fit.

I have heard of guys rechambering old war-trophy schuetzens for common american cartridges,   32 win sp, comes to mind.

If someone ran a 32-40 reamer into an 8.15x46r chamber would it create a chamber for a case like that an "8.15x??R long"?

Or have I just not had enough coffee to be thinking straight this morning Wink

addendum:  dang just remembered I have a batch of  full length 32 win special that have been resized into my 8.15x46r die, but not trimmed to 8.15 length yet.
I just chambered one into the Aydt and it chambered just fine; and the Aydt block closed perfectly on the unbeveled rim.    Shocked  ?????????????


Same problem i have thus the experimenting with the long case and a borerider.
The short case and "fat" stopring wins hands down!
The long case is a cheater in that it is a 30-30 i ran through the sizing die and it is unfired. Thats why it seems to have a nice defined neck. Not so on a fired/resized case.

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Fred Boulton
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Re: 8.15x46r stop ring bullet info
Reply #12 - Nov 27th, 2013 at 12:09pm
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When the 8.15 round came in to general use, every gunsmith produced his own reamer. Early rifles show a lot of variation, but around  the early 1900s, they all got together and agreed a "normal" set of dimensions. If your rifle is marked "Normal" then a set of CH dies and an NEI mould should work fine. You only need the dies to form cases from 30-30s, after the first firing, the bullet can be thumb seated.
Fred
  
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Re: 8.15x46r stop ring bullet info
Reply #13 - Nov 27th, 2013 at 12:51pm
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Quote:
My new Aydt chamber casting show no clear evidence of where the mouth edge of an 8.15x46r case would be, I cant see one or feel one.  but a bit farther ahead I can feel a slight "edge" or ramped step.


The reason for that is that the SR should be neck diameter and that centers the bullet to start it into the throat. In my 1924 rifle, that area also has a little taper.

Frank
  

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Re: 8.15x46r stop ring bullet info
Reply #14 - Nov 27th, 2013 at 5:16pm
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Fred Boulton wrote on Nov 27th, 2013 at 12:09pm:
When the 8.15 round came in to general use, every gunsmith produced his own reamer. Early rifles show a lot of variation, but around  the early 1900s, they all got together and agreed a "normal" set of dimensions. If your rifle is marked "Normal" then a set of CH dies and an NEI mould should work fine. You only need the dies to form cases from 30-30s, after the first firing, the bullet can be thumb seated.
Fred


Mine is from 1937 and has the odd chamber with no throat.
  
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