I'm still confused... The Life of a Shoulder

[bozo699]

Interesting stuff. Skimming thru it I would agree with everything you said. A lot to read. I don't want to spend my life reading post. My simple take is that when you size the body the case the wall cannot change thickness. You can only get longer. The metal always has to go somewhere when you change the shape. It doesn't really matter to me but I always wondered where the metal moved to when you bump the shoulder. Do you move the corner where the body and shoulder meet? Does the shoulder just become a little concave and you’re really not moving the entire shoulder? It doesn't really matter because what we are doing works fine.

When the factory does the massive forming from a brass disc to a case what do they lube with?

I don’t like long drawn out posts either, but this one isn’t long, try one of Nedds or Laurie’s posts…… although there very good and informative there extremely long.
(I appreciate there knowledge)
This post by RegionRat I thought was spot on, direct to the point for the first half then explained in the second half.
Wayne

 

[Dimner]

The 200 line is a datum point of a chamber reamer .200 above the case head towards the case shoulder junction.
You’ll see it noted on the attached print, this area can be monitored s couple different ways. Micrometer is the best way although a simple caliper works just fine.

I get it now! This is the area that Ken Waters was always measuring in his tests and writing about in the pet loads articles. Just dawned on me that the .200 line and what he was measuring was the same thing

 

[bozo699]

I get it now! This is the area that Ken Waters was always measuring in his tests and writing about in the pet loads articles. Just dawned on me that the .200 line and what he was measuring was the same thing

He did most of his work with 3030 cases, is that correct?… where did you find this info?
It’s a off topic question to your post but I have a old 730 Waters barrel for my encore, I’ve never used it and am curious
Wayne

 

[Dimner]

He did most of his work with 3030 cases, is that correct?… where did you find this info?
It’s a off topic question to your post but I have a old 730 Waters barrel for my encore, I’ve never used it and am curious
Wayne

He did tests for his articles in almost every cartridge that was available at the time. I think he did 25ish years of articles? His consolidated pet loads book is over 1000 pages and personally I think every hand loader should own or at least page through once.

The one case he designed was a 7-30/30 called the 7-30 waters. I've always wanted to try it. I have a savage 1899 takedown that is just begging for a barrel in 7-30

 

[bozo699]

He did tests for his articles in almost every cartridge that was available at the time. I think he did 25ish years of articles? His consolidated pet loads book is over 1000 pages and personally I think every hand loader should own or at least page through once.

The one case he designed was a 7-30/30 called the 7-30 waters. I've always wanted to try it. I have a savage 1899 takedown that is just begging for a barrel in 7-30

Dimmer,
What’s the name of his book and I’ll try to locate a copy
Wayne

 

[RegionRat]

Dimmer,
What’s the name of his book and I’ll try to locate a copy
Wayne

 

[bozo699]

View attachment 1539168

Thank you sir
Wsyne

 

[fkimble@charter.net]

Where does the brass go when sizing? Do you remember the TV commercial long ago about car pricing or something along those line? The gent was holding one of those long "hotdog" looking balloons with writing on the side, things like down payment trade-in etc. And he says, so you want more for your trade in and he squeezes the part of the balloon where trade-in is written. The rest of the balloon gets bigger. Very similar to a brass case. In open air(not restrained by contact with chamber wall) the brass will expand til something stops it. Same in a die. If the case wall is squeezed down, the shoulder expands forward. Dies are designed to over size a case. The maker wants it to make any case run thru it for a given caliber to chamber easily. Todays accuracy minded shooter take all the reloading steps to the extreme for their needs. They don't shoot factory chambers or factory ammo. Pick your purpose and load to fit.

Frank