This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 edition. Excerpt: ... CHAPTER XI CHOKES, PATTERNS, AND VELOCITIES BORING shotguns has reached its present state of perfection, if we are ...
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1921 edition. Excerpt: ... CHAPTER XI CHOKES, PATTERNS, AND VELOCITIES BORING shotguns has reached its present state of perfection, if we are permitted to call it such, through a process of evolution. A decade or so ago all sorts of artifices for throwing shot in a closer mass were called chokes, though some of them meant a freeing of the muzzle, others a recess or two recesses where the shot charge spread and was then contracted. There were recesschokes, bell-chokes, multiple-chokes, jug-chokes, and at last taper-chokes. Some of these styles were fairly effective, others were effective temporarily, and others are in use at the present time. To-day manufacturers have settled upon methods of choking their barrels so similar that results in all our best arms are practically equal. Many gunbuilders claim that their barrels are a true taper-choke, the natural inference being that the bore tapers evenly from breech to muzzle, depending for close shooting qualities upon the gradual contraction of the charge. The theoretical taperchoke appeals to the gun buyer who does not like the idea of suddenly upsetting and jamming his charge with a probability of leading his gun. Theoretically the taper-choke is perfect, but I doubt if it would work at all in practice, and neither have I ever been able to find a gun that had it despite all the claims of manufacturers. My own belief is that a tube with an even taper from breech to muzzle so that the load could adjust itself as it passed out would shoot little if any closer than a plain cylinder. Choke boring, as will presently appear, depends for its efficacy upon jamming the shot together at the muzzle with such force that they will cling together in a mass for some distance after they leave the gun. A gradual contraction, such as...
Reprinted blue cloth hardcover has generally light edge wear, but a bit more at the spine top. The book has a little staining at the text edge top & a thin strip of foxing at the gutter on the inside front cover, otherwise the book is very good, with clean, unmarked pages. An overall look at the shotgun, with much detail and lots of photos.
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