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Winchester 40 Express
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August 6, 2022 - 8:26 pm
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I have read that a 50 basic case can be used for reloading, could someone tell me what a 50 basic case is? also if someone could share any published dimensions of the Winchester 40 express, Thanks

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August 6, 2022 - 10:40 pm
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I have a full box, and several individual 40 Express cartridges that I can put a micrometer on and provide specific measurements… just let me know what dimensions you are looking for.

Bert

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August 6, 2022 - 11:59 pm
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A basic case is an unformed case, I can only assume the .50 is a rimmed case but I don’t believe it’s being manufactured today. It could be necked down, formed and/or trimmed to make a variety of large volume BP cartridges. Someone who does more than dabble in Black Powder Cartridge Rifles could probably give you a more complete answer. I’m barely familiar with cartridges formed from 45 Basic brass but the concept is the same.

 

Mike

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August 7, 2022 - 12:06 am
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Bert H. said
I have a full box, and several individual 40 Express cartridges that I can put a micrometer on and provide specific measurements… just let me know what dimensions you are looking for.

Bert

  

Bert, I appreciate you doing this for me

1. over all length with bullet

2. length of case

3. width of bottom of case (no rim) and width of throat so I can determine taper

4. size of bullet

it would be interesting to know if your lose one’s are the same size as the ones you have in box?

thanks again for helping

Jim

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August 7, 2022 - 2:21 am
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JComer said 

Bert, I appreciate you doing this for me

1. over all length with bullet

2. length of case

3. width of bottom of case (no rim) and width of throat so I can determine taper

4. size of bullet

it would be interesting to know if your lose one’s are the same size as the ones you have in box?

thanks again for helping

Jim  

OK, here are the measurements;

OAL = 3.625

Case Length = 3.25

Base diam. = .548

Neck diam. = .430

Rim diam. = .650

Bullet size – 260 gr.

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August 7, 2022 - 11:53 am
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Bert H. said

JComer said 

Bert, I appreciate you doing this for me

1. over all length with bullet

2. length of case

3. width of bottom of case (no rim) and width of throat so I can determine taper

4. size of bullet

it would be interesting to know if your lose one’s are the same size as the ones you have in box?

thanks again for helping

Jim  

OK, here are the measurements;

OAL = 3.625

Case Length = 3.25

Base diam. = .548

Neck diam. = .430

Rim diam. = .650

Bullet size – 260 gr.

  

Sorry, can I get bullet diam., so looking at your measurements does the casing have a distant bottle neck or tapered?

Thanks for all your help

Jim

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August 7, 2022 - 4:43 pm
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According to Donnelly’s book the dimensions for a 40-110 EX are”

OAL – 3.63″

Case length – 3.25″

Base (head) diameter – .543″

Neck diameter – .428″

Neck length – .645″

Length to shoulder – 2.36″

Rim diameter – .651″

Rim thickness – .06″

Shoulder diameter – .485″

Shoulder length – .245″

Shoulder angle – (Deg’s/side) 6.63

Body angle (Deg’s/side) .769

Bullet diameter – .403″  Need to slug the barrel to make sure.

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August 7, 2022 - 4:48 pm
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Jim,

I cannot get an exact bullet diameter on a loaded cartridge.  That stated, I am relatively sure that Winchester used the same bullet diameter as the 40-82 WCF, a .406 or .407.  Frankly, the bullet diameter needed should be determined by slugging the bore.

The case has a both a very long taper, and a slight bottle neck at the 2.55″ inch mark.

Bert

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August 7, 2022 - 4:56 pm
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Bert H. said
Jim,

I cannot get an exact bullet diameter on a loaded cartridge.  That stated, I am relatively sure that Winchester used the same bullet diameter as the 40-82 WCF, a .406 or .407.  Frankly, the bullet diameter needed should be determined by slugging the bore.

The case has a both a very long taper, and a slight bottle neck at the 2.55″ inch mark.

Bert

  

Thank You!

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August 7, 2022 - 6:09 pm
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This seller has 45-100 and 405-100 Bertram brass for sale. These are both a basic type straight wall cases and will have to be fire formed.

https://www.northernshooterssupplies.com.au/category-s/506.htm

https://www.northernshooterssupplies.com.au/category-s/429.htm

I have bought from this seller a few times.  You have to remember that his prices are in AU dollars which are less than US dollars.  Their dollar is worth about $.69 US.

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August 7, 2022 - 7:47 pm
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Chuck said
This seller has 45-100 and 405-100 Bertram brass for sale. These are both a basic type straight wall cases and will have to be fire formed.

https://www.northernshooterssupplies.com.au/category-s/506.htm

https://www.northernshooterssupplies.com.au/category-s/429.htm

I have bought from this seller a few times.  You have to remember that his prices are in AU dollars which are less than US dollars.  Their dollar is worth about $.69 US.

  

Chuck,

Thanks

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August 8, 2022 - 4:45 pm
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I think somewhere I may have a period drawing for the 40 Express. If I remember to look for it when I’m home, I’ll post it.

Sincerely,

Maverick

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August 8, 2022 - 4:51 pm
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Not a period drawing but there is one in Donnelly’s book.

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August 8, 2022 - 8:07 pm
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Maverick said
I think somewhere I may have a period drawing for the 40 Express. If I remember to look for it when I’m home, I’ll post it.

Sincerely,

Maverick

  

That would be great, Thank you

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August 8, 2022 - 8:08 pm
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Chuck said
Not a period drawing but there is one in Donnelly’s book.

  

would love to see that too, Thanks

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August 8, 2022 - 10:52 pm
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From Handloader’s Manual of Cartridge Conversions

 

Win-40-EX-Data.jpgImage Enlarger

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August 8, 2022 - 11:38 pm
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Chuck said
From Handloader’s Manual of Cartridge Conversions

 

Win-40-EX-Data.jpgImage Enlarger

  

Thank You!!

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August 9, 2022 - 12:24 am
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Chuck said
From Handloader’s Manual of Cartridge Conversions

 

Win-40-EX-Data.jpgImage Enlarger

  

The shoulder angle depicted in that diagram is exaggerated quite a bit as compared to an actual W.R.A.Co. cartridge.

Bert

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August 9, 2022 - 12:56 am
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Chuck,  I have made cases by making them smaller, etc, to include thinning the rim or reducing the diameter of the head area.  But never have I had to build up the rim thickness.  How is that done, if you may?  I may never need to know, but its nice to have more data cluttering the limited memory capacity!!  Tim

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August 9, 2022 - 4:47 am
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Well sorry to disappoint. I couldn’t find a drawing for the 40 Express, only the 45 Express.

Sincerely,

Maverick

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