Bill, the Cerrosafe works. It is reusable but one needs a little funnel to pour it right.
The
Sinclair Chamber length gauge works in bolt action rifles and costs $4.45 per size. It is put into a sized but uncrimped cartridge then carefully chambered.
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In a few years when the dust finally clears and people start counting their change there is a pretty good chance that President Obama may become known as The Great
Absquatulator. You heard it first here on TFL.