The expander ball helps force the brass into place. I’m not sure the projectile will operate the same way on the brass. You know the projectile is malleable.
I understand where you're coming from on this and a picture doesn't show how tiny the discrepancy is. The mis-torqued dies prevented the shoulder from being bumped in by about 3-5 degrees. It was close enough that the case mouth was sized correctly, but the shoulder missed the die by an ass hair.I am against resizing a live round because materials that ‘give’ might impact your volume and maybe elongate the case.
I’d take off the projectile, save the powder, and resize even with primer on it. But I’m Leary of a full loaded cartridge getting resized.
The expander ball helps force the brass into place. I’m not sure the projectile will operate the same way on the brass. You know the projectile is malleable.
I was just thinking the expander ball provides some rigid support to the case as the die shoulder forces the case shoulder to move. Will the brass move enough without a rigid support where normally there is one?I understand where you're coming from on this and a picture doesn't show how tiny the discrepancy is. The mis-torqued dies prevented the shoulder from being bumped in by about 3-5 degrees. It was close enough that the case mouth was sized correctly, but the shoulder missed the die by an ass hair.
In post #1 I mentioned how unforgiving the .357 Sig is to reload. The picture below's shoulder is correct. My failed shoulders are barely out of spec, preventing them from passing the Lyman case gauge test.
.
It is not a compressed load. 124gr RMR Nuke over 8.6gr Longshot @1.14". A hot load, but under SAAMI max (Confirmed by Hodgdon and GRT specs)Will one drop into the sizing die up to the shoulder? I have a hunch the neck won't go back in and then it would be a moot point.
You probably aren't using a compacted load. I would think its safe enough to push the shoulder back a couple thousandths w/ powder in there. That is if the neck physically fits into the die...
Sizing dies are undersized so they take into account the brass springback. The expander ball stretches the neck back out to size. With a bullet in there, it likely won't even enter the sizing die correctly.
That would be another reason to have concern for running a loaded cartridge up into it.
The failed cases are the correct length and freely pop in and out of 10mm/.40 die. I am 99% sure the shoulder angle is the issue. I have never tried to resize a live round which is why I am asking the brain trust.My vote is for removing the projectile with a collet puller nice and calm. (no kinetic hammer)
Also if the case doesn’t go up all the way into the die the base can remain swelled. I think that’s also why the cartridge might not drop all the way in. Soooo now I’m wondering if you use the 40sw die with the pin and ball removed like a small base die. Then see if that was the hang up. I don’t know but maybe that might do it. Just have to remeasure everything to see if it worked.
This might explain a little.My vote is for removing the projectile with a collet puller nice and calm. (no kinetic hammer)
Also if the case doesn’t go up all the way into the die the base can remain swelled. I think that’s also why the cartridge might not drop all the way in. Soooo now I’m wondering if you use the 40sw die with the pin and ball removed like a small base die. Then see if that was the hang up. I don’t know but maybe that might do it. Just have to remeasure everything to see if it worked.
Roughly 3/4 of them fail the plunk test. I am not comfortable "sending one home" in the pistol while in my house.Do they chamber in your pistol though? Try it with the slide and barrel off the frame.
I've got a batch of Longshot that gives me ridiculous velocities and likely over pressure using Hogdon published loads.
I've had the expander ball pull the neck forward slightly if the inside of the neck is not lubed. I only use mandrel style expanders these days.
If it’s the shoulder alone, then from the picture showing the base sticking out it seems far off to where you’d be relying on the projectile to help keep the neck in place while all the forces come into play to move the shoulder. I just think something will budge where it shouldn’t budge if the brass does actually move.The failed cases are the correct length and freely pop in and out of 10mm/.40 die. I am 99% sure the shoulder angle is the issue. I have never tried to resize a live round which is why I am asking the brain trust.
I agree with not ‘sending home’. I had some .45acp round I reloaded get stuck in the chamber at a range and it was hard to pull the slide back, etc. from my first batch. Another story for another time maybe.Roughly 3/4 of them fail the plunk test. I am not comfortable "sending one home" in the pistol while in my house.
Umm, something looks really wrong. Can you give use a pic of the round by itself?This might explain a little.
I can't get a good enough picture to show the shoulder angle discrepancy, so I am not posting that.
.
Glock 31 with a 5.5" Bar Sto ported barrel. It would easily chamber in the factory Glock barrel, but I sold it that for more than a new KKM barrel (G31 factory barrels aren't sold without the pistol and are unobtanium)Pull the slide and barrel off the frame. What kind of pistol are we talking about?
Good and bad. You probably can't see it, but the shoulder angles are different. They are the same length, just slightly offset in the pic.Umm, something looks really wrong. Can you give use a pic of the round by itself?
Incorrect. I start with factory .357 Sig brass. I decap and resize with a .40 carbide die. I then size again with a .357 Sig die. This makes the operation much smoother on a progressive because I am only sizing the neck and shoulder on the press.SG do you need new .40sw cases to make new .357sig brass until you figure out these 122? I would donate some to you as I have a lot from another member here who gave them to me. I can spare.
If I understood you do that conversion.
Ok. I think I recall you did write that a ways back. Gotcha.Incorrect. I start with factory .357 Sig brass. I decap and resize with a .40 carbide die. I then size again with a .357 Sig die. This makes the operation much smoother on a progressive because I am only sizing the neck and shoulder on the press.