Oh no, not another 45acp Case Longevity Test!

CQB45ACP

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R-P only this time. All .894" and longer to start. Just an arbitrary selection.

Here I am sorting by length--.889" and under, .890-.892", .893", and .894" and over. The under .890s go in a "don't use" container. I do that for all my brass. Just do.

Depending on how many .894s I end up with and how many I lose, I could add the .893ers to the mix. We'll see.

Will deburr flash holes, hand chamfer mouths, and uniform primer pockets using K&M tool. No reaming nor other monkey business.

Although I will use my Ballistics go/no go gauge out of curiosity, I will not rely on it to decide whether pockets need "work". Am simply going to let the actual priming itself determine each case's usability. I'll prime 'em until they don't prime no more. At that point, if it's a primer depth issue (since we know they get shallower) I may re-uniform them, but that's it.

Right now, most pockets seem tighter than similarly newish Winchester cases but a lot less than S&Bs.

Like the last test, I will measure the length after each use, watch them shorten, and report out from time-to-time. It'll be interesting to see what's what 17 months from now.
IMG_4937.jpeg
 
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R-P only this time. All .894" and longer to start. Just an arbitrary selection.

Here I am sorting by length--.889" and under, .890-.892", .893", and .894" and over. The under .890s go in a "don't use" container. I do that for all my brass. Just do.

Depending on how many .894s I end up with and how many I lose, I could add the .893ers to the mix. We'll see.

Will deburr flash holes, hand chamfer mouths, and uniform primer pockets using K&M tool. No reaming nor other monkey business.

Although I will use my Ballistics go/no go gauge out of curiosity, I will not rely on it to decide whether pockets need "work". Am simply going to let the actual priming itself determine each case's usability. I'll prime 'em until they don't prime no more. At that point, if it's a primer depth issue (since we know they get shallower) I may re-uniform them, but that's it.

Right now, most pockets seem tighter than similarly newish Winchester cases but a lot less than S&Bs.

Like the last test, I will measure the length after each use, watch them shorten, and report out from time-to-time. It'll be interesting to see what's what 17 months from now.
View attachment 1239042
Are you going to call them “done” when the primer pockets get too tight to load this time?
 
Since I shoot out my back/front door I would use a small quantity ( 1 mag or 2) and keep on shooting till failure. Have my progressive setup and ready to go. After I shoot wipe clean, inspect, reload and shoot again. Keep going till failure. Since I shoot BE level loads I don't think there would be enough time in a day to get to failure.
 
R-P only this time. All .894" and longer to start. Just an arbitrary selection.

Here I am sorting by length--.889" and under, .890-.892", .893", and .894" and over. The under .890s go in a "don't use" container. I do that for all my brass. Just do.

Depending on how many .894s I end up with and how many I lose, I could add the .893ers to the mix. We'll see.

Will deburr flash holes, hand chamfer mouths, and uniform primer pockets using K&M tool. No reaming nor other monkey business.

Although I will use my Ballistics go/no go gauge out of curiosity, I will not rely on it to decide whether pockets need "work". Am simply going to let the actual priming itself determine each case's usability. I'll prime 'em until they don't prime no more. At that point, if it's a primer depth issue (since we know they get shallower) I may re-uniform them, but that's it.

Right now, most pockets seem tighter than similarly newish Winchester cases but a lot less than S&Bs.

Like the last test, I will measure the length after each use, watch them shorten, and report out from time-to-time. It'll be interesting to see what's what 17 months from now.
View attachment 1239042
Are you running out of .45 ACP brass! I got you covered! 😆
 
The journey officially begins...

First 50 cases uniformed, chamfered, primed with Remingtons and ready to load.

How many times have these cases already been loaded? Don't know. Some are once fired (by me) others bought by me as once fired, others likely random pickups, but I really don't know which are which. Given they are long (.894"-.898") and we know 45acp brass shortens each time fired, we know even the shortest haven't been fired much.

IMG_4939.jpeg
 
Since I shoot out my back/front door I would use a small quantity ( 1 mag or 2) and keep on shooting till failure. Have my progressive setup and ready to go. After I shoot wipe clean, inspect, reload and shoot again. Keep going till failure. Since I shoot BE level loads I don't think there would be enough time in a day to get to failure.
Well I'd do that too and it's essentially what this guy did--

 
The journey officially begins...

First 50 cases uniformed, chamfered, primed with Remingtons and ready to load.

How many times have these cases already been loaded? Don't know. Some are once fired (by me) others bought by me as once fired, others likely random pickups, but I really don't know which are which. Given they are long (.894"-.898") and we know 45acp brass shortens each time fired, we know even the shortest haven't been fired much.

View attachment 1239171
I’m waiting for the, “How short is too short?” thread to start. I have a feeling it’s next. 👍😁
 
R-P only this time. All .894" and longer to start. Just an arbitrary selection.

Here I am sorting by length--.889" and under, .890-.892", .893", and .894" and over. The under .890s go in a "don't use" container. I do that for all my brass. Just do.

Depending on how many .894s I end up with and how many I lose, I could add the .893ers to the mix. We'll see.

Will deburr flash holes, hand chamfer mouths, and uniform primer pockets using K&M tool. No reaming nor other monkey business.

Although I will use my Ballistics go/no go gauge out of curiosity, I will not rely on it to decide whether pockets need "work". Am simply going to let the actual priming itself determine each case's usability. I'll prime 'em until they don't prime no more. At that point, if it's a primer depth issue (since we know they get shallower) I may re-uniform them, but that's it.

Right now, most pockets seem tighter than similarly newish Winchester cases but a lot less than S&Bs.

Like the last test, I will measure the length after each use, watch them shorten, and report out from time-to-time. It'll be interesting to see what's what 17 months from now.
View attachment 1239042
OBOY! I had a bunch of .36 Special brass that I tried shooting to failure. I gave it up and returned to knitting!:eek: ...not, but It did
seem like a good idea at the time! :cool:
 
Do you know that for sure.......?
I’ve tried going down to less than fifty thousandths hold, head spacing on the extractor, and the only problem was from setback. Nothing dangerous but it was a little surprising.

Steel and aluminum cases are harder on the extractor than short brass. Age got to the extractor of my Thompson/Auto-Ordnance I have no idea how many rounds it took but I did finally wear one out.

Ol’ John Moses was a genius!
 
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