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 Post subject: CB8100-12 wad height
PostPosted: Wed Jun 13, 2018 7:55 pm 
Limited Edition

Joined: Thu Feb 18, 2010 1:08 am
Posts: 326
Location: Chandler, Arizona
Does anyone know or can someone that has some of the CB8100-12 wads on hand use a caliper and give me the height measurement of the wad. I have some of the Downrange versions of the TGT-12 and want to make sure that the Claybuster version is as high. I am considering switching from the CB1100-12 to the BB8100-12 for all my 1oz. loads. I am getting some dishing with the CB1100-12's and wanted a wad that had a bit more stack height. Thank you!



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 Post subject: Re: CB8100-12 wad height
PostPosted: Wed Jun 13, 2018 8:13 pm 
Field Grade

Joined: Mon Dec 19, 2016 7:00 pm
Posts: 20
Location: Manchester, Mo USA
The CB8100-12 wad is 1.012" from the bottom of the over powder wad to the top of the shot cup. At least on the one that I measured with dial indicator.


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 Post subject: Re: CB8100-12 wad height
PostPosted: Wed Jun 13, 2018 9:09 pm 
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Joined: Thu Feb 18, 2010 1:08 am
Posts: 326
Location: Chandler, Arizona
Thank you! I was kind of hoping for the total measurement from top to bottom of the entire wad though so I can't compare it with what I have. If you have that measurement I sure would appreciate it.

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 Post subject: Re: CB8100-12 wad height
PostPosted: Wed Jun 13, 2018 9:56 pm 
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Joined: Thu Jan 10, 2013 10:25 am
Posts: 3774
Location: Annapolis, MD
I think that is the measurement rat-man provided.

But there might be some other issue causing your dished crimps. It would help if you provided all the data for the load you are making. What kind of powder and how much? What hull? You have a stack height problem of some sort.

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 Post subject: Re: CB8100-12 wad height
PostPosted: Wed Jun 13, 2018 10:30 pm 
Field Grade

Joined: Mon Dec 19, 2016 7:00 pm
Posts: 20
Location: Manchester, Mo USA
The overall length is 1.755, I misunderstood your question..


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 Post subject: Re: CB8100-12 wad height
PostPosted: Thu Jun 14, 2018 12:21 am 
Tournament Grade

Joined: Wed Feb 21, 2018 9:59 pm
Posts: 134
the length from the bottom/top [whatever] of the powder cup to the top of the petals is a better measurement.
your setting that cup on the powder, the sides/skirt will just go down to wherever it goes down to.
it would also be better if you measured to the top of an ounce of shot in the shot cup.


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 Post subject: Re: CB8100-12 wad height
PostPosted: Thu Jun 14, 2018 1:20 pm 
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Joined: Mon Mar 28, 2005 11:25 pm
Posts: 1371
Location: Attica, Mi
Maybe I'm misunderstanding everything but the measurement from the bottom of the wad to the bottom of the shot cup is going to determine stack height. To the top of the fingers ? - what makes a difference is the cushion height, not total height. I believe the CBer overpowder cup is different than the DR wad, so that also can make a difference in stack height.

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 Post subject: Re: CB8100-12 wad height
PostPosted: Thu Jun 14, 2018 1:49 pm 
Limited Edition

Joined: Thu Feb 18, 2010 1:08 am
Posts: 326
Location: Chandler, Arizona
Thank you very much. The 1.755 measurement is what I was looking and hoping for.

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 Post subject: Re: CB8100-12 wad height
PostPosted: Fri Jun 15, 2018 8:04 pm 
Presentation Grade

Joined: Wed Mar 22, 2006 11:23 am
Posts: 831
Location: Issaquah, WA
I have loaded at least 10K 1 oz shells with the DRRT-12 wads and have not had a dishing issue; at least one that couldn't be fixed by a minor press adjustment. I have also found the CB-8100-12 and Remington TGT-12 wads to load fine with the same press adjustments. As was stated above, you might want to look for other causes for the dishing just to be sure there aren't other problems.

My recipe is:
Remington hull
DRRT-12 wad
1 oz shot
18 grains Promo
Fiocchi 616 primer (although I sometimes use Cheddite)

This is basically right out of the Alliant load data except for the primer. Since the published load generates 8700 PSI (with a Rem 209P primer) I have no qualms about subbing the Fio or Cheddite primer but you have to make your own decision whether you are comfortable with a primer sub or not (or take out a bank loan and buy some Rem primers :lol: ).




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