long primer


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long primer

[′lȯŋ ′prī·mər]
(ordnance)
Primer with relatively long body, designed to provide central ignition for a propelling charge.
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References in periodicals archive ?
Bruce offered to complete three sets of plates to any size Bible between Long Primer and Nonpareil by May 1, 1817, for four thousand dollars.
In the fall of 1826 alone, the society declined a used set of quarto Bible plates from New York printer John Evans and considered a new duodecimo Long Primer New Testament from New York printer George Mather.
Too short primers may easily produce multiple bands and reveal bad reproducibility while too long primers may cause high background when staining.