The arte of shooting in great ordnaunce Contayning very necessary matters for all sortes of seruitoures eyther by sea or by lande. Written by William Bourne.

About this Item

Title
The arte of shooting in great ordnaunce Contayning very necessary matters for all sortes of seruitoures eyther by sea or by lande. Written by William Bourne.
Author
Bourne, William, d. 1583.
Publication
Imprinted at London :: [By Thomas Dawson] for Thomas Woodcocke,
1587.
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Subject terms
Shooting, Military -- Early works to 1800.
Artillery -- Early works to 1800.
Link to this Item
http://name.umdl.umich.edu/A16508.0001.001
Cite this Item
"The arte of shooting in great ordnaunce Contayning very necessary matters for all sortes of seruitoures eyther by sea or by lande. Written by William Bourne." In the digital collection Early English Books Online. https://name.umdl.umich.edu/A16508.0001.001. University of Michigan Library Digital Collections. Accessed May 31, 2025.

Pages

Page 8

CHAPTER. II.

To know whether any peece of Ordinance be truelie bored, by the helpe of certaine instrumentes.

TO know whether that any peece of Ordi∣nance be truly bored, ther be diuers waies Geometrically for it to be done, but some of them be too tedious, therefore for an ea∣sie way, they must make this kinde of in∣strument of two peeces of small timber, or two right staues, that must be as long as the hollow or con∣cauitie of the peece, which must be made in this forme, & the 〈◊〉〈◊〉 must be made so fast at ye one end, that it be not wider asunder at the one end, than it is at the other end, & so made fast, that they swarue not eyther wider or narrower: and then putting one of the ••••aues into the mouth of the peece, and so measuring or trying the peece rounde about with the staffe that is without the peece, with an ynche rule, you shall know whether that the core or hollownesse of the peece do 〈◊〉〈◊〉 right in the middle of the mettle, and if it doe not, you shall see howe much the mettell is thicker on the one side, than it is on the other. And also it is very good for you when you do meane to trie the peece, to prepare rammer head that is made fitte for the peece, and to put it vppon the staffe that you do put into the peece, and to be made fast vnto the side of the staffe, and side of the rammer head, in such sort, that it may keepe the staffe close vnto the side of the peece, which it will do the better, if the rammer head be to low, and then to haue a peece of a Sheepes skinne made fast, or nayled vnto the contrarie side of the rammer heade, and so it will keepe the long staffe close vnto the side of the peece, as by these two figures following you may perceiue.

Page 9

[illustration]

And furthermore, they may make this kinde of instru∣ment following, of yron, or any other stuffe meete for the purpose, for to gripe the peece in euery place at your plea∣sure.

[illustration]

This instrumente muste bee double the length of the hollow or concauitie of the peece, and then you muste put one of the right ones into the mouth of the peece, and then griping the instrument together, then that parte that is without the peece, and that shall shewe you howe many ynches and partes of an ynche the mettall is of thicknes, without any fayle: and then trying the peece round about in euery place, the truth of the thicknes of the mettall shal appeare.

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