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Very Hot Topic (More than 25 Replies) 38-70 High Wall (Read 891 times)
gunlaker
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Re: 38-70 High Wall
Reply #15 - Oct 11th, 2026 at 9:14am
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Is the m die any different than just using an rcbs expander die with custom mandrels or does it do something extra.
  
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bpjack
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Re: 38-70 High Wall
Reply #16 - Oct 11th, 2026 at 11:31am
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The nice aspect of the Lyman die are the custom expanders that Buffalo arms sells for them.
  

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marlinguy
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Re: 38-70 High Wall
Reply #17 - Oct 11th, 2026 at 12:47pm
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Lyman M die rods are threaded on the end so you can quickly change expander plugs. Unfortunately Lyman sells the expander rods with plugs as an assembly and not just the expander plugs. But they're pretty cheap, and I just set the rods aside and use only the plugs. I drilled a wood block with a bunch of holes and used a sharpie to write diameters by each expander.
I buy the expanders direct from Lyman and since they don't sell custom sizes I just buy the next size larger and turn them down. Chuck the threaded shank in my drill press and use a file to work them down to the exact size I need for whatever I'm expanding. They have a large variety of sizes for sale, but occasionally they're a bit larger than I need. Last I bought were less than $4 each, so I bought extras in .45-70 and .38-55 to save on shipping.
  

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gunlaker
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Re: 38-70 High Wall
Reply #18 - Oct 11th, 2026 at 1:00pm
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This does sound the same as using an RCBS expander die and a set of custom mandrels then.  I have piles of custom ones from Buffalo Arms that I can use to get whatever neck tension I want in each calibre.

Chris.
  
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westerner
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Re: 38-70 High Wall
Reply #19 - Oct 11th, 2026 at 5:41pm
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Just checked and I do have one set of 45-90 Lyman dies. The expander die is stamped M-2. So it must be the M die. Lyman did good. Slick. I've always made my own when I needed them. That's why I told Jack to get on the lathe and make one. Cheaper thata way. As Johnny Cash would say...
  

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marlinguy
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Re: 38-70 High Wall
Reply #20 - Oct 12th, 2026 at 9:15am
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I often remove that ridge on my M die expanders so I can run it down deeper.
  

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Green_Frog
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Re: 38-70 High Wall
Reply #21 - Oct 13th, 2026 at 10:14pm
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I’ve always regarded the M die as one of the last great reloading tools the gnomes at Lyman got to make before the paper pushers stifled all development @ Lyman. 
Froggie
  
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Re: 38-70 High Wall
Reply #22 - yesterday at 2:09pm
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I have used the famous M-die for quite a few years. Very helpful!
But…I know nothing about the .38-70, .38-72, etc. as compared to the .38-55. Maybe the others are better long distance cartridges?

Tom
  
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bpjack
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Re: 38-70 High Wall
Reply #23 - yesterday at 2:41pm
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My 38-70 was chosen, not because I was looking for a longer range option, but simply because the barrel on eBay was a good price.  I will be taking it to the rang tomorrow to see how it shoots with smokeless, fixed and breech seated.

Jack
  

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oneatatime
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Re: 38-70 High Wall
Reply #24 - yesterday at 4:33pm
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The Jeffery company wasn't founded until 1891 so those Winchesters were kicking around in England for several years before that. In their early years piecework was handed out to other companies.
  
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Re: 38-70 High Wall
Reply #25 - yesterday at 5:22pm
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bpjack wrote yesterday at 2:41pm:
My 38-70 was chosen, not because I was looking for a longer range option, but simply because the barrel on eBay was a good price.  I will be taking it to the rang tomorrow to see how it shoots with smokeless, fixed and breech seated.

Jack


You can always rechamber the barrel to the venerable 38-55 in your South Bend lathe. At 34 inches of barrel length you got plenty of material. 

What ever happend to the shooters on here who claimed the 38-55 was a viable 1000 yard cartridge? Maybe they all rechambered to 38-70? 38-90? 38-72? 
You better enter some 1000 yard matches with the 38-70 before you rechamber to 38-55. 



  

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beltfed
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Re: 38-70 High Wall
Reply #26 - yesterday at 6:15pm
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FWIW
I had built a 38-72W /10 twist with the idea of 1K work.
About the same case capacity of your 38-70.
Early work was somewhat mixed.  I left it behind/sold it.
I think the case capacity on both of these big 38s is on the 
"too much of a good thing"
More recently, I picked up a 10 twist 38-50 Rem Hep.
The RH has been easy to achieve good results. I think
the capaciy is idealfor 38 cal.   
Have had very good performance from it at midreange and
it will also (safely) reach out to 1K with a 360 gr DDEPP bullet over 64-67 gr Swiss 1.5 clocking 1375fps. 
A couple years ago, I bought back the 38-70 and try some things
with it that I have learned since my early work with it.
  
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bpjack
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Re: 38-70 High Wall
Reply #27 - yesterday at 6:29pm
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These sort of projects keep me off the streets and up at night.  What I need is a 1000 yd range with a house with 4 bedrooms, a large heated shop, a pool and sauna.  My wife said fine as long as it has salt waterfront.  Still looking and entering the lottery.
  

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