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I need to know if the new winchester wad for the HS hulls will work in the old type aa hulls. I just acquired several hundred hulls and they are mixed new and old type. Would like to be able to load them with the same components.





TIA Jim
 

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I have used the Remington SP-410 wad in both the old compression formed AA and the new HS hull with good results. The two hulls have different internal volumes and overall lengths so you will not be able to load both with the same setting on your loader.

Jim Skeel
 

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NO! The HS wad is oversized for the older Compression Formed hull, and pressure will rise. Yellow Duster and Downrange PC orange wads work well in the CF hulls.
 

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I would be very careful with substituting components in the .410 because pressures can spike drastically with seemingly small changes. The Alliant site shows that in the new AAHS hull 12 gr. of .410 with Duster wad gives 10,740 psi while only 11.4 gr. of .410 with a Duster wad in the old hull results in 11,100 psi, both using W209 primers. Stick to published loads.
 
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