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Barnyard Drake
PostPosted: Mon Jul 29, 2024 8:34 am  Reply with quote



Joined: 21 Jan 2019
Posts: 56
Location: Indiana

Hello Gentlemen,

I tried finding information on this in the search engine, but it was like looking for a needle in a haystack.

Does anyone know if adding a card below the wad (sp16 in a Federal or Cheddite hull) increases pressure? Seems much easier than trying to flare out wads.

Thanks for your help,

BD

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MSM2019
PostPosted: Mon Jul 29, 2024 9:03 am  Reply with quote



Joined: 04 Mar 2019
Posts: 1914
Location: Central ND

Nitro cards do not seal as well as the plastic wad, even though the SP16 isn't tight in either of those hulls, it still seals better than a nitro card. The chamber pressure will not increase.

If my answer still leaves you a bit on the fence, use a 20 gauge nitro card and remove all doubt.

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putz463
PostPosted: Tue Jul 30, 2024 2:39 am  Reply with quote
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Joined: 06 Oct 2007
Posts: 2390
Location: West MI

Plus the SP16' OB cup is next to impossible to flare being so shallow.

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