Pulled bullets and cases for retest

[Chiquita]

I had a load dev. ready to go 96 rounds with different charge weights.

Long story short I have about 4 possible loads that had great results. I have about 52 unfired rounds that will be way over pressure. I have to pull those and dump the powder back in the jug.

My question. The loads that may have a potential and I want to retest, can I resize the necks on the pulled cases and use for the new test? or it is better to use another set of fired cases? or it doesn't matter.

TIA

 

[ebb]

I size the cases and proceed

 

[lgwatson]

I had a load dev. ready to go 96 rounds with different charge weights.

Long story short I have about 4 possible loads that had great results. I have about 52 unfired rounds that will be way over pressure. I have to pull those and dump the powder back in the jug.

My question. The loads that may have a potential and I want to retest, can I resize the necks on the pulled cases and use for the new test? or it is better to use another set of fired cases? or it doesn't matter.

TIA

I would neck size.

 

[GLShooter]

I resize the necks and fire away.

 

[Clancy]

you need to size them to whatever the test was done with orginially.

96 rounds is an insane amount of powder testing. 18-27 is much more like it.

If you need some advice hit me up in the DMs.

 

[Chiquita]

Got it,
@ebb The pulled cases were not shot. I will neck size only or full size again?

 

[Ccrider]

They were not prepped the same, why would you expect them to shoot the same?

 

[Kracken McGraw]

Got it,
@ebb The pulled cases were not shot. I will neck size only or full size again?

I really don’t think your going to loose your neck tension by just pulling the bullet, there was something said to that effect in a not too distant thread.

 

[Rwfish]

Got it,
@ebb The pulled cases were not shot. I will neck size only or full size again?

Went thru this to a lesser degree this summer. Pulled bullet, dumped powder, resized the necks, loaded back up, go…

 

[Clancy]

I really don’t think your going to loose your neck tension by just pulling the bullet, there was something said to that effect in a not too distant thread.

You definitely will. Without a doubt.

Seat some and pull them to see it for yourself.

 

[Ccrider]

Well, if it works for you, that’s good. A lot of it depends on the level of accuracy you’re looking for.

 

[Kracken McGraw]

You definitely will. Without a doubt.

Seat some and pull them to see it for yourself.

I knew you would get me on that, lol.
I have pulled and reset some different bullets in dummy rounds is all. I just remembered someone posting about this not too long ago and am sure not taking it as science either.

 

[chop house]

And henceforth the value of loading at the range.
I just did similar but with only a handful of cases. Pulled, dumped, and neck sized only.

Be very sure you look in each 'empty' case. I had stick powder bridge in one, and that would have been disaster.

I shine a light and look for the flash hole.

 

[jelenko]

look in each 'empty' case.

This! Try a powder like Shooters World Match.

 

[243winxb]

Full Length Resize.

 

[Chiquita]

This! Try a powder like Shooters World Match.

That's exactly what I am trying g to find a load with Shooter World Match.
It is like sanded saw dust.

 

[DocBII]

Chiquita,

On one at a time, pull the bullet, re-weigh the powder charges if using the same powder, neck size, powder with the corrected charge and seat bullet. Why throw the powder back in the container, even if you're doing a bunch at one time?

HTH,
DocBII

 

[Chiquita]

After pulling bullets, dumping the powder and as I was resizing the necks, you know the moment that the light bulb turns on and you say $#it

well, I realized why I had major over pressure. I had measured my BTO wrong. All of the test load were jammed into the lands.

The lighter loads did OK. The pressure got higher as the charge went higher, but the speed was relative to the charge weight.

Well, I guess I will have to start from square one.

Funny thing is, if I had noticed the issue at the range, I could have lowered the seating depth as I had my gear with me.

 

[64Rambler]

can I resize the necks on the pulled cases and use for the new test? or it is better to use another set of fired cases? or it doesn't matter.

Lots of factors at play here. I did this a while back as a test and for the same powder charge and seating depth found different group sizes between original load, pulled bullet and reload (for me ended up being the smallest group), pulled bullet-resize and reload (largest group). The difference boils down to neck tension; Original is what it is. Pulled and reloaded is like having used a bullet sized mandrel. Pulled and resized may have a bit more work hardening even though the neck measures the same as original, but probably has higher hoop strength.

 

[DHD]

I have needed to do this on a much smaller scale when testing combinations where no data exists (think 6mmARC before Hornady and Sierra published theirs) loading ladder tests. I would pull (hammer actually as I use a kinetic puller gently), dump the charges into a larger prescription container and reuse that powder for verifying the load. I would full length size minus the decapping pin. I don't remember needing to pull more than 10.

I wince when I see this question asked ever so often and an individual loaded up say 100, and had to pull all of them. Not fun I suspect, but a great learning experience.....or not.