Will primer only loads foul bore more than standard primer with powder loads?

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Bwana John

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Sep 10, 2004
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I have been playing with primer only loads, 22 cal pellets in a 22 Hornet, and glue sticks in a 45 acp.

Can the residue of the primer only loads foul the bore more that standard primer with powder loads (excess primer residue is burned off with the ignition of the powder?)
 
Yes.

Primers alone leave noticeably more residue then when it is all consumed and ejected by a normal high-pressure powder burn.

rc
 
I think some priming compounds have bits of metal and glass in them to make the priming compound more sensitive and to promote powder ignition. As rc said, it needs powder to push it out the barrel.
 
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