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 Post subject: Difference in WAA20 wad and a CB 1078-20 wad
PostPosted: Tue Jun 23, 2020 7:32 am 
Field Grade

Joined: Tue Dec 05, 2017 1:32 pm
Posts: 42
The bag of CB 1078 -20 wads says replaces WAA 20. Hodgdons recipe shows both WAA-20 and CB 1078-20, different recipes. Is there a difference
Using Long Shot powder
Thanks
Bill




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 Post subject: Re: Difference in WAA20 wad and a CB 1078-20 wad
PostPosted: Tue Jun 23, 2020 8:25 am 
Field Grade

Joined: Sat Apr 18, 2020 7:03 am
Posts: 28
I've looked through all of my manuals and could not find any conflicting Hodgdon's data like you describe. However, in the BPI Advantages Manual, there is conflicting data like you describe with CB-1075-20 and WAA20 wads. Also, this is with Remington hulls and Vectan A1 or A0 powders. Be careful disseminating load data.

My loads for 20 gauge 2 3/4" hulls from Hodgdon's site:

Federal hull
Federal 209A primer
22.8 gr Hodgdon Longshot
CB-1078-20 wad
7/8 oz #7NP Magnum shot

Remington hull
Federal 209A primer
18.3 gr Hodgdon Longshot
CB-1078-20 wad
7/8 oz #7NP Magnum shot

Both of those loads called for a WAA20 wad. None were to be had (discontinued) and used the replacement Clay Buster wad without issue. Hope this helps. Good luck and stay safe.


Last edited by hockeynick39 on Tue Jun 23, 2020 8:47 am, edited 1 time in total.

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 Post subject: Re: Difference in WAA20 wad and a CB 1078-20 wad
PostPosted: Tue Jun 23, 2020 8:28 am 
Field Grade

Joined: Tue Dec 05, 2017 1:32 pm
Posts: 42
Thank you


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 Post subject: Re: Difference in WAA20 wad and a CB 1078-20 wad
PostPosted: Sun Jul 26, 2020 9:31 am 
Utility Grade

Joined: Sun Sep 25, 2011 7:17 pm
Posts: 3
I see differences you note for the clay buster “replacement” wad data on the Alliant Powder website.

The pressures vary up or down between the two wads you mention depending on size of charge....all other things being seemingly equal.

Probably close enough for government work sure but are they a replica? Apparently not.


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 Post subject: Re: Difference in WAA20 wad and a CB 1078-20 wad
PostPosted: Sun Jul 26, 2020 9:53 am 
Utility Grade

Joined: Tue Dec 10, 2019 9:28 pm
Posts: 6
I have found the Winchester are taller thereby effecting the stack height.


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 Post subject: Re: Difference in WAA20 wad and a CB 1078-20 wad
PostPosted: Sun Jul 26, 2020 10:40 am 
*Proud to be a*
*Proud to be a*

Joined: Thu Jan 10, 2013 10:25 am
Posts: 4612
Location: Annapolis, MD
Hodgdon's website includes a wad "replacement" chart that has information saying the CB wad is a replacement for the AA wads used in the data. Here is a link to the chart:

https://hodgdon.com/wp-content/uploads/2017/01/wadsubchart.pdf

To me, this means where the Hodgdon data says to use the WAA20 wad, you can safely use the CB version. However, while very similar, the two wads are not identical, so there could be some differences in performance. I would expect any differences to be de minimis.

Downrange has a similar chart showing where its wads can be be substituted.

_________________
Ceteris paribus, of course.


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 Post subject: Re: Difference in WAA20 wad and a CB 1078-20 wad
PostPosted: Sun Jul 26, 2020 12:25 pm 
Field Grade

Joined: Tue May 26, 2020 10:12 am
Posts: 75
Location: Iowa
Thanks for the link to the wad exchange chart. Good information.


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 Post subject: Re: Difference in WAA20 wad and a CB 1078-20 wad
PostPosted: Sun Jul 26, 2020 2:18 pm 
Tournament Grade

Joined: Thu Oct 06, 2011 3:36 pm
Posts: 285
Location: FL
The only difference I am aware of is price.


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 Post subject: Re: Difference in WAA20 wad and a CB 1078-20 wad
PostPosted: Sun Jul 26, 2020 3:00 pm 
Field Grade

Joined: Tue Jul 14, 2020 4:02 pm
Posts: 23
CB 1078-20 is a clone of the original WAA20.

Current production WAA20s are longer.


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 Post subject: Re: Difference in WAA20 wad and a CB 1078-20 wad
PostPosted: Sun Jul 26, 2020 3:58 pm 
Limited Edition

Joined: Sat Dec 29, 2007 4:04 pm
Posts: 432
Location: Wenatchee, WA
The Win wad uses the same data but has less shot volume. Makes the stack height very different. I use them for 3/4 oz loads. The Clay Busters hold a full 7/8. I have crushed multiple hulls trying to get a full 7/8 oz in Win wads. A denser powder would change things.


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 Post subject: Re: Difference in WAA20 wad and a CB 1078-20 wad
PostPosted: Sun Jul 26, 2020 6:03 pm 
*Proud to be a*
*Proud to be a*

Joined: Thu Jan 10, 2013 10:25 am
Posts: 4612
Location: Annapolis, MD
Keep in mind the OEM wad is the same wad Win uses in the factory loads. The factory uses a very dense powder in the load which shortens the stack height. They make up for it with a bit longer crush section in the wad. We reloaders, while we have access to the sale powder the factory uses, typically use bulkier powders, which means you need a wad with a shorter crush section, so the crimps don't tent or the hull doesn't buckle. It may be the people who designed the CB replacement wad were aware of this and made the crush section of their wad a bit shorter to accommodate the bulkier powders reloaders typically use.

_________________
Ceteris paribus, of course.


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 Post subject: Re: Difference in WAA20 wad and a CB 1078-20 wad
PostPosted: Mon Jul 27, 2020 4:43 pm 
Diamond Grade

Joined: Wed Jun 05, 2013 12:52 pm
Posts: 1473
Location: Grayling, MI
Last October I purchased a case of WAA20 wads sporting the new black & red logo? I think they are still being made. In STS hulls with 16.0 grains of 20/28 & 7/8 ounce of shot they are a great fit. And I could get them for $95/5,000 or $19/1,000.

After messing around with many wads it seems I am down to these: WAA20, AA28HS, AA410HS. To generalize I say they fit better, seal better, and do not seem to leave plastic in my barrels.




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