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#625461 01/28/23 01:44 PM
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Antonio Offline OP
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How difficult or simple it is to modify a Highwall extractor for rimless cartridges? Morris Hallowell has two rifles for sale now that are rimless - one in 6mm Remington and another in 257 Roberts so it can be done. I have asked this same question to the folks at C-Sharp Arms in Montana, but have had no reply. I realize that there is always a rimmed cartridge that will do whatever it is you need to do, but I want to build one myself around a rimless cartridge.

Any suggestions are very much appreciated.

w

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Winchester made Singleshots in .30-06 and some experimental cartridges. Not many though. They have a spring (of course) and a screw on the left side of the receiver that pushes a modified extractor into the rimless groove of the case. I've never seen one, however.


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BrentD, (Professor - just for Stan)

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Antonio Offline OP
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Thank you Professor Brent. I will have to search for a photo and see if I can duplicate it.

w

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Going back to the online photos at the Morris Hallowell site I don't see a screw on either the right or left of either rifle. Still searching for an answer and photos.

w

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Originally Posted by Antonio
Thank you Professor Brent. I will have to search for a photo and see if I can duplicate it.

w

I looked in Campbell's, but found only the verbal description of it. Campbell had a lot of drawings and photos of most parts and variations, so the lack of rimless extractor drawings or photos is surprising. However, my search was quick and I should look again.

Modern highwalls by Winchester and Browning B78 are completely different under the hood, of course, but I wonder if you could get an idea from those and adapt it somehow.


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BrentD, (Professor - just for Stan)

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Antonio Offline OP
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I found the answer in Frank de Haas book on Single Shot Rifle Actions pages 12-14 in case anyone else is curious.

https://ia600909.us.archive.org/20/items/FrankDeHaasMrSingleShotsGunsIdeaBook/Frank%20de%20Haas%20-%20Mr%20Single%20Shot%27s%20Guns%20Idea%20Book.pdf

Thanks again Brent. Good suggestions to compare.

w

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I have one that Pope modified to 7.5x55 Swiss that I can email you some photos. I can't post photos to this site.

DanLH #625495 01/29/23 11:09 AM
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Originally Posted by DanLH
I have one that Pope modified to 7.5x55 Swiss that I can email you some photos. I can't post photos to this site.

Email them to me and I'll post them for you. I always like to see another Pope, and a 7.5x55 would be a first for me in that rifle.


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BrentD, (Professor - just for Stan)

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Antonio Offline OP
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Thanks to both of you for your willingness to share and also to post. I think a lot of us would like to see some photos.

Many thanks,

Wally

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I took a couple photos of the extractor modification, I need an email to send them to.

DanLH #625574 01/31/23 09:12 AM
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Originally Posted by DanLH
I took a couple photos of the extractor modification, I need an email to send them to.


My email is brentd@iastate.edu

It is in my profile as well.

I look forward to seeing them.


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BrentD, (Professor - just for Stan)

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Here are three photos of Dan's highwall. A 7.5mm Pope is certainly interesting. I've never heard or read of one like it.

Antonio, is there a particular reason why you want a rimless cartridge? Perhaps you have the reloading gear for it from another rifle.

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]


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BrentD, (Professor - just for Stan)

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Antonio Offline OP
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Brent et al.

I very much like the 257 Roberts. It is also the challenge of doing the project. I have made 2 falling block rifles in 30/40 Krag and it is a wonderful cartridge, but I want to try something different without going to a Number One or the more expensive Hagn or Dakota. Besides, I like the look of a Highwall.

Thanks to everyone for your help. I think the explanation and diagrams in Frank de Haas book is feasible for me.

w

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Antonio,
The 25/30-40 Krag is a good cartridge, either the standard or Ackley Improved version.
Mike

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Two more images from Dan's Pope Highwall.

[Linked Image from i.imgur.com]

[Linked Image from i.imgur.com]


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BrentD, (Professor - just for Stan)

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Originally Posted by Antonio
Brent et al.

I very much like the 257 Roberts. It is also the challenge of doing the project. I have made 2 falling block rifles in 30/40 Krag and it is a wonderful cartridge, but I want to try something different without going to a Number One or the more expensive Hagn or Dakota. Besides, I like the look of a Highwall.

Thanks to everyone for your help. I think the explanation and diagrams in Frank de Haas book is feasible for me.

w

Well, you could not have chosen better for your project. The highwall is the finest rifle ever made, anywhere. And the handsomest by a country mile.

[Linked Image from i.imgur.com]


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BrentD, (Professor - just for Stan)

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Just an observation based on 50+ years of experience : you can teach a bear to ride a bicycle, but you can't teach him to like it. A high wall can be made to work with rimless cases, but it's not worth the trouble. If you have to have a rimless case, get a Ruger.


Bill Ferguson
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I have a hi wall 25 krag 30 inch round bbl. With a weaver 10x scopeits ugly but works .farquharsen and 97 westly are much better looking .

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