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Old September 2, 2014, 04:01 AM   #1
flahunter
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Clay Dot 12 gauge 3/4 oz. loads

Does anyone know which Mec bushing I should use ?
Formula = Clay Dot, CB 0178 wad, Rem 209p, 1200-1250 fps, 15 grains
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Old September 2, 2014, 04:21 AM   #2
darkgael
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bushing averages

Stole this from Shotgun world:
Quote:
24 13.7 13.9 14 14.2 13.9 13.9 24
25 14.6
26 15.1 15.3 15 15.4 15.3 15.2
27 15.8
28 16 16.5 16.6 16.4 16.6 16.4
29 17
Looks like #25. You will need to check this with your scale for your lot of powder.
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Old September 2, 2014, 03:00 PM   #3
flahunter
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do u know if "Alliant clay dot and extra- lite" burn about the same ?
Thx,MB
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Old September 2, 2014, 07:59 PM   #4
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The bushing are wrong. You will need to use a scale to verify your powder drop. ClayDot is not ideal for 3/4 - Titewad and Extra-Lite are the best

Do NOT go by burn rate - that has nothing to do with what you are trying to do, except maybe take a finger off

Why aren't you using the CB 3/4oz wad? You may need to add a Cheerio on top for a better crimp

Last edited by A400 Fan; September 2, 2014 at 08:05 PM. Reason: added
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Old September 3, 2014, 12:30 AM   #5
Mule
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+1 on the Clay Buster 3/4 ounce wad.
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Old September 3, 2014, 05:18 AM   #6
flahunter
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Alliant reloading formula calls for CB0178, but I think u r rt. I'll go w/CB3/4 wad. Thx
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Old September 3, 2014, 02:04 PM   #7
BigJimP
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But the point is, there is no published recipe, at least on the Alliant site, for a 3/4 oz load in a 12ga using Clay Dot....

Clay Dot is not a smart choice...for a 3/4 oz load...and changing the wad isn't the solution...

If you want to use Clay Dot....then use it per the published recipes at 7/8 oz etc....per the tables is my recommendation.
---------------
Like others advised, make sure you use a good scale to check what a given bushing is dropping ...for any powder....but the only chart I can find for MEC bushings for Clay Dot are:

# 28 15.4 gr
# 29 16.0 gr
#30 16.5 gr
# 31 16.9 gr
# 32 17.4 gr
# 33 18.1 gr
# 34 18.8 gr....

but there is nothing sacred about a # 28 bushing....one #28 may vary as much as 1/2 grain ...over another #28 bushing. They're easy to loosen up, if you want to ...and remark them with a Dremel.

If you have a published recipe for 15.0 gr....I'd start with a # 27 bushing and check it with a scale to see what its dropping...( drop 5 or 6 charges and average them out ).../ but if it varies more than plus or minus 0.1 grain ...then you have other issues.

Last edited by BigJimP; September 3, 2014 at 02:34 PM.
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Old September 3, 2014, 08:44 PM   #8
mxjunky78
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Can't go wrong with titewad for the lighter 12ga target loads. I load 15gr in my 7/8oz target loads and like it says on the bottle, a little sure does go a long way! I'm using the claybuster WAA12l wads with this combo. They're going around 1300fps and if I do my part it really smokes the targets.
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Old September 4, 2014, 03:20 PM   #9
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I load 17 for 3/4oz loads that, over a chrono, are 1210 fps. 18 gave me 1275 - that's the average with a SD of 5. The 1210 loads work both my gas guns with zero issues.

IF you drop to 3/4, you will need to boost the 7/8 data - usually about 1 grain - but you can verify that on your own
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