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  #1  
Old 03-20-2020, 07:35 AM
cavelamb cavelamb is offline
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contaminated my press

"I don't want to talk about it."
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Last edited by cavelamb; 03-20-2020 at 01:00 PM.
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  #2  
Old 03-20-2020, 08:11 AM
Sr. Oso Sr. Oso is offline
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You let the cat out of the bag so details...getting it off your chest will set you free and perhaps let us learn something. If nothing else, it’ll give some of us a good laugh.
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Last edited by Sr. Oso; 03-20-2020 at 07:01 PM.
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  #3  
Old 03-20-2020, 08:38 AM
JBnTX JBnTX is offline
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"contminated my press"

Maybe we could talk about the quality of the public school system instead?
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  #4  
Old 03-20-2020, 08:39 AM
400cor-bon 400cor-bon is offline
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Did you buy Dillon dies for your Lee press?



....... ; )
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  #5  
Old 03-20-2020, 11:50 AM
tractor tractor is offline
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Quote:
Originally Posted by 400cor-bon View Post
Did you buy Dillon dies for your Lee press?



....... ; )
No, the other way round........
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  #6  
Old 03-20-2020, 12:38 PM
cavelamb cavelamb is offline
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Thanks Oso.

I have two Springfield 1911a, one 45acp and one 9mm.

I squibbed both of them early this week.

Now OBVIOUSLY something was wrong, so I started checking my recent production.

Yesterday I ran through 100 round each of 9 and 45.
The results were depressing.

Of each 100 there were 6 or 7 squibs and as many total fail-to-fire.
10% to 15% failures.

All of the FTF did fire when struck again - with the same pistol.

The squibs were interesting because of the unburned powder that
came out when removing the case from the chamber.

Most of those had the bullet lodged close enough to the chamber that
another round could not feed.

But one (45) saw the bullet about 1/4" deep at the muzzle end.
That one could have been a disaster if the next round fired normally.

The 45acp round affected were both LPP and SPP
The 9s were, of course, SPP.

My press is a Lee Classic Turret press, with the Lee Safety Prime system.
That system uses completely different devices for SPP and LPP.
Even the arm/cup mechanism is specific to SPP vs LPP.
So no commonality there.

I think what happened is I managed to contaminate the dies and/or the primer
system with spray lube because I was working on something else near the press
a few weeks ago.

So this weekend will be a cleaning frenzy.

ALL the turrets and ALL dies are going to meet with brake cleaner.
So will the ram and the rest of the press.

Because I can't think of anything else that could cause such problems.


But right now I'm heading back to the range - in the rain! - to check
another 100 each.

Statistically twenty round from each should show if there is a problem or not.
If so, they will all be disassembled, cleaned and rebuilt.

If not, I'll set them aside as practice rounds - just because.
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  #7  
Old 03-20-2020, 12:40 PM
cavelamb cavelamb is offline
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............._*()&(*&_(*(%*$#)(*_#........
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  #8  
Old 03-20-2020, 12:46 PM
Oldfut808 Oldfut808 is offline
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Quote:
Originally Posted by cavelamb View Post
"I don't want to talk about it."
=========
It was the virus
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  #9  
Old 03-20-2020, 12:48 PM
firecracker6 firecracker6 is offline
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Cavelamb: Have you checked whatever system you're using to drop charges? I don't want to offer advice that's not wanted but that's the probable cause of your squibs. A bullet stuck in the leade is symptomatic of a primer and no powder; don't ask how I know that.

Last edited by firecracker6; 03-20-2020 at 12:50 PM.
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  #10  
Old 03-20-2020, 12:51 PM
filthy phil filthy phil is offline
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Quote:
Originally Posted by JBnTX View Post
"contminated my press"

Maybe we could talk about the quality of the public school system instead?
cant blame that one on autocorrect
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  #11  
Old 03-20-2020, 12:58 PM
havanajim havanajim is offline
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Press covers!!! Made some years back (I lie.... the Mrs. made them for me!), and they've work like a charm. No dust, no dog hair, no risk of over-spray contamination..... nothing! Used old fabric that was laying around. My humble, 2-cent recommendation....
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  #12  
Old 03-20-2020, 12:59 PM
cavelamb cavelamb is offline
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I don't flipping care about spelling at the moment.

Firecracker,
Thanks - Didn't think of that.
It's an RCBS Uniflow operated manually.
Probably okay, but I'll clean that too.

I drop into the brass pan of an RCBS 5-0-5 scale.
That brass pan . . .
Openly exposed to everything in the world.
And common to all loads.
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  #13  
Old 03-20-2020, 01:06 PM
cavelamb cavelamb is offline
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Quote:
Originally Posted by firecracker6 View Post
Cavelamb: Have you checked whatever system you're using to drop charges? I don't want to offer advice that's not wanted but that's the probable cause of your squibs. A bullet stuck in the leade is symptomatic of a primer and no powder; don't ask how I know that.

Normally I'd accept that as gospel (don't ask how I know either )

But not this time.
There was quite a bit of unburned powder that came out from the squibs.
That's why I am thinking contaminated tools.

Powder is Titegroup. It's 4 years old, but freshly opened 1 lb can.
I'll open a different can when I start back up.
If that goes well, I can come back and test this can.

Appreciate the help, firecracker.
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  #14  
Old 03-20-2020, 01:08 PM
cavelamb cavelamb is offline
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Originally Posted by havanajim View Post
Press covers!!! Made some years back (I lie.... the Mrs. made them for me!), and they've work like a charm. No dust, no dog hair, no risk of over-spray contamination..... nothing! Used old fabric that was laying around. My humble, 2-cent recommendation....



accepted.

I have a bag that fit the old (smaller) mount.
But a cover is now high on the list of things to make happen.

Appreciate the pennies.
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  #15  
Old 03-20-2020, 01:13 PM
jmorris jmorris is online now
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Quote:
Press covers!!! Made some years back (I lie.... the Mrs. made them for me!), and they've work like a charm. No dust, no dog hair, no risk of over-spray contamination..... nothing! Used old fabric that was laying around. My humble, 2-cent recommendation....
Yeah, your wife told you she made them by had but just gave you some old pillow cases she had stuffed in a drawer.
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  #16  
Old 03-20-2020, 02:20 PM
jjfitch jjfitch is online now
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"I think what happened is I managed to contaminate the dies and/or the primer
system with spray lube because I was working on something else near the press
a few weeks ago."

A little overspray from light spray lube IS'NT your problem!

Even primers soaked in WD40 will ignite!

Some powder drops are susceptible to static electricity.

Do you see powder stuck to the inside of the powder hopper?

Is your powder measure properly calibrated and away from windows or other sources of air currents?

Some years ago I had similar experience with a load 50 @ 9mm's! It turned out to be a piece of Styrofoam about the size of a large grain of rice. It bridged the drop tube, powder flowing by created enough static to cause the powder to stick to the drop tube.

"Static" happens!
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  #17  
Old 03-20-2020, 02:25 PM
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Tom Freeman Tom Freeman is offline
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Do you wet tumble your brass?

Check the powder hopper for foreign objects.
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Old 03-20-2020, 03:13 PM
Nitro.45 Nitro.45 is offline
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That is right where I was going...damp brass...

Also, pour a little of that powder on something you don't care about and light it. Does it burn readily? I have never had a can of bad powder.

The double hit on the primers is weird too?? What kind?
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  #19  
Old 03-20-2020, 03:17 PM
Sistema1927 Sistema1927 is offline
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Bad powder?
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Old 03-20-2020, 04:59 PM
JSJAC JSJAC is offline
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Double hit on the primer sounds like a high primer to me.
On the Sqib ,if you are wet tumbling that is my bet. Water behind the primer.
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Old 03-20-2020, 05:37 PM
Capt. Methane Capt. Methane is offline
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Do you have tool steel sizing dies and lube the cases? I got a squib some time ago on the one set of pistol dies that I have that is tool steel. There were several light recoils and then one that didn't at all, just a muffled ploop...

I thought due to the light charge weights (.38 S&W) maybe a case didn't get charged but when I swung the cylinder out there was all of the 2 point whatever grains of BE with the lead bullet stuffed into the pipe a couple of inches.

Or maybe were your cases exposed to the WD-40 spray? Sounds to me exactly like what I experienced.

I don't use a spray lube on stubby cases any more...
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  #22  
Old 03-20-2020, 05:41 PM
cavelamb cavelamb is offline
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Quote:
Originally Posted by Tom Freeman View Post
Do you wet tumble your brass?

Check the powder hopper for foreign objects.

I do wet tumble to clean.
Then dry in the oven and finally tumble in corncob and NuFinish to polish.
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  #23  
Old 03-20-2020, 05:42 PM
cavelamb cavelamb is offline
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Quote:
Originally Posted by Capt. Methane View Post
Do you have tool steel sizing dies and lube the cases? I got a squib some time ago on the one set of pistol dies that I have that is tool steel. There were several light recoils and then one that didn't at all, just a muffled ploop...

I thought due to the light charge weights (.38 S&W) maybe a case didn't get charged but when I swung the cylinder out there was all of the 2 point whatever grains of BE with the lead bullet stuffed into the pipe a couple of inches.

I don't use a spray lube on stubby cases any more...

That's kinda what I'm thinking, Captain.
These are Lee carbide dies. But I did lube a while back.
Didn't log it so I don't know exactly when.

Just gonna thoroughly clean house - just in case it was the virus.
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Last edited by cavelamb; 03-20-2020 at 05:57 PM.
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  #24  
Old 03-20-2020, 05:45 PM
cavelamb cavelamb is offline
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Originally Posted by Nitro.45 View Post
That is right where I was going...damp brass...

Also, pour a little of that powder on something you don't care about and light it. Does it burn readily? I have never had a can of bad powder.

The double hit on the primers is weird too?? What kind?



Powder from the can lights normally
(yeah, I've burned some before Maybe more than once?)

Plain old ordinary CCI small pistol number 500 primers
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  #25  
Old 03-20-2020, 05:55 PM
cavelamb cavelamb is offline
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Quote:
Originally Posted by jjfitch View Post
"I think what happened is I managed to contaminate the dies and/or the primer
system with spray lube because I was working on something else near the press
a few weeks ago."

A little overspray from light spray lube IS'NT your problem!

Even primers soaked in WD40 will ignite!

Some powder drops are susceptible to static electricity.

Do you see powder stuck to the inside of the powder hopper?

Is your powder measure properly calibrated and away from windows or other sources of air currents?

Some years ago I had similar experience with a load 50 @ 9mm's! It turned out to be a piece of Styrofoam about the size of a large grain of rice. It bridged the drop tube, powder flowing by created enough static to cause the powder to stick to the drop tube.

"Static" happens!

I still drop into a brass pan and weigh every charge.
I know the Uniflow is GENERALLY accurate enough to trust.
Generally.
But I'm a little obsessive on powder weight.
Even for pistol loads.

Using an RCBS 5-0-5 scale - slightly modified, I expect +/1 .05 grains delta.
With care I can do better than that.

But lately I've just been using a Frankford Arsenal digital as a check scale
getting .5 grain delta (rounding error).


When I get TOTALLY obsessive about it I've been able to make magic.
But that's a whole lot of extra work.

Thankfully this latest run were just plinkers.

Maybe good point about the over spray.
But if so, I'm really worried about what I did do...
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