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Reloading dangerous "mistakes"
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 Posted: Tue Nov 27th, 2012 05:00 PM
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1shotj
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I have a Lee balance beam powder scale and use it frequently to check metered charges or even to weigh every charge for test lots. This is the second Lee scale I have owned as the first one got mysteriously broke while was I was at work one day(kids). I kept the powder tray from that scale and discarded the rest. The other day I was building some test loads for a 270 and had both trays out on the bench. Well,,, at some point after setting the scale I switched trays. The first round fired fine the next blew out the primer and sent a puff of smoke out the rear of the bolt. When I got home I pulled the bullets from the remaining rounds and found there was a 3.2 gn difference in charge weights putting me 2.2 grains over max load. After much head scratching I weighed the two trays and guess what...3.2 gn differance. That lighter tray is now in a drawer for safe keeping. Good news is rifle stll shoots under MOA.



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 Posted: Tue Nov 27th, 2012 05:11 PM
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Rory McCanuck
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Yikes, glad no one was hurt.



 Posted: Tue Nov 27th, 2012 05:18 PM
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TenTea
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Whooda Thunkit?



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 Posted: Tue Nov 27th, 2012 06:08 PM
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kls44
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Wouldn't have thought of that one!
You could file a little off the edge of the heavy one until it weighs the same as the lighter one, then you won't have to worry about it.



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 Posted: Tue Nov 27th, 2012 10:32 PM
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12semi
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Yep, I'd definitely be doing something to get both to the same weight.  if that had been a pistol, and you were at max, you might be wondering if you can learn to write left handed. 



 Posted: Wed Nov 28th, 2012 12:15 AM
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ghrit



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I'd drop a carpenter's nail bending device on one, you pick.



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 Posted: Wed Nov 28th, 2012 12:46 AM
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williamwaco
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Honest Dad!

That thing just jumped off the shelf.
I never touched it.

.
.
.

Been there - Done that.


.



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 Posted: Wed Nov 28th, 2012 03:15 AM
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Kickstart
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ghrit wrote:
I'd drop a carpenter's nail bending device on one, you pick.

+1



 Posted: Sat Dec 1st, 2012 09:05 PM
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1shotj
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I guess thats what i get for being a reloading stuff hoarder.



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 Posted: Sun May 19th, 2013 07:55 PM
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asphaltrd
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Joined: Sat Jul 14th, 2012
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ghrit wrote: I'd drop a carpenter's nail bending device on one, you pick.
Hammer Time



 Posted: Tue May 21st, 2013 12:37 AM
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OldStuffer



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TenTea wrote:
Whooda Thunkit?

Actually, I woulda.................

CHANGE any part of that scale, and you MUST at least CHECK it's zero (any scale, not just that one).

This, IMO, gets back to "bench clutter".................

Had the "good" scale been out, the "broke" scale thrown away (as it was), AND ANY SALVAGED PARTS of the "broke" scale been put away, "stored", away from the loading bench (a drawer, a shelf the other side of the room, the toolbox, whatever was NOT "on the loading bench"), this would have been impossible to have happen.:shameon:

I am very happy no-one, and no gun, was hurt in this instance. :thumbs:



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 Posted: Tue May 21st, 2013 01:52 AM
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Nalgi
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yea, I agree with oldstuffer.
Are you saying you never have checked your balance? Really?



 Posted: Tue Nov 19th, 2013 07:57 AM
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No Slack
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Wouldn't have thought of that one! I'm getting some great What If's answered



 Posted: Mon Dec 9th, 2013 08:19 PM
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Legend911
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I just fianally bought a set of electronic scales.I am having a hard time trusting them.too used to the balance scales. I have used them to weigh my completed loads against each other and am amazed just hoe close they are all completed. This is"nt reloading it is a science. LOL



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 Posted: Sat Jan 11th, 2014 06:42 AM
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OldRed
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I have written the software for digital scales and at some point the software stops the process and gives a reading that doesn't change until some threshold is overcome. At 1:00 am 10 years later I don't recall the exact process. The better scales follow a standard statistical method they publish somewhere. Practically the software can do the same as we do and lock it in the center and crosses back forth in ever smaller swings past a common point.

If you think gunpowder is touchy try herbicide that goes down at rate of 0.1205 grains per square foot.

We used a nickel, dime, quarter, 50 cent piece and some pieces of stainless steel shim stock that had been trimmed down to the weight marked on them for small weights down to 20 mg. For large weights we had tin cans with eye bolts filled with lead that we would calibrate before each critical use against a good set of NCIS traceable standard weights that didn't take the abuse these did.

I picked up a set of brass weight on ebay and calibrated them against a known good set of weights the same way.

-Red
Them golden years done turned to rust.



 Posted: Thu Jan 23rd, 2014 12:40 AM
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1shotj
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I check the balance every time I load, what happened here is part way through loading I just grabbed the other tray. They of course look the same.



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 Posted: Thu Jan 23rd, 2014 02:20 PM
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win 86
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i have wore out pan scale, and when i got a new rcbs pan from sportsmanswearhouse, it was way to heavy and had to grind it down to match the old one. i used other powder scales to get it right and got it right by adding a little super glue to the pan. it seems to me EVERY SCALE IS CALIBRATED DIFFERENTLY. hope someone can add to my experiences. mike



 Posted: Thu Jan 23rd, 2014 08:16 PM
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Hamltnblue
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When kids were living in the house the only time a scale was moved I did a check of the house for drugs. Big yellow flag with kids. Never hurts to check the rooms while they're out.



 Posted: Sat Mar 15th, 2014 12:56 AM
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Randy C
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Glade you and the gun are ok. Thanks for the warning I have several scales and pans.



 Posted: Sat Mar 15th, 2014 12:46 PM
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Silvertip
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win 86 wrote: i have wore out pan scale, and when i got a new rcbs pan from sportsmanswearhouse, it was way to heavy and had to grind it down to match the old one. i used other powder scales to get it right and got it right by adding a little super glue to the pan. it seems to me EVERY SCALE IS CALIBRATED DIFFERENTLY. hope someone can add to my experiences. mike
The RCBS pans I have all have a table (the part the pan sits on) with a removable base screwed on. You are supposed to take off the bottom and add/remove lead shot to calibrate the new pan to the scale. RCBS will send you a replacement pan, base or instructions usually free if you need.

It's also a good idea to get a set of certified check weights to check your scale from time to time. I found this out when I bought a used scale as an extra and it didn't have a pan with it. I couldn't get the same reading between my 10-10 and the 505 using the same pan and found out about the calibration shot in the base.



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