Читать книгу The Complete English Wing Shot онлайн

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The best place to keep cartridges in during the winter is the gun-room with a fire, and in the summer in the gun-room also, if it is dry enough not to require a fire; but the principal safeguard is to keep cartridges and their bags and magazines out of the sun as much as possible. The sun will easily raise the so-called “pressure” by about a ton per square inch in some cartridges. How much this may really be it is difficult to even suggest, but Lieutenant Hardcastle has estimated that “pressures” are not reliable within 30 per cent., and the author would have said by more. Fifty per cent. added is a very different proportion to 50 per cent. of reduction. In one case it is as 2 to 3, and in the other case it is as 2 to 1.

WITH PLENTY OF FREEDOM FOR GOOD LATERAL SWING

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Many scientific calculations have been made with a view to improving the shooting of sportsmen, or at least of interesting them. Two, which are in theory unassailable, have appeared very often indeed in the unanswerable form of figures and measurements, and nevertheless they are both misleading, and even wrong, in the crude form in which they have been left. One of these is based on the calculation that the shot and the game can only meet provided a certain fixed allowance in front of moving game is given. The calculations are quite correct, but they have no application to sport, for the simple reason that they neglect to calculate the reduction of the theoretical allowance in front, supposed to be necessary, but not all imperative because of the swing of the gun. In other words, the gunner, however expert he may be, does not know exactly where his gun points at the instant the tumbler falls, let alone the instant the shot leaves the barrel. Between the instant of pulling the trigger and the shot leaving the barrel a swinging gun will have moved some unknown distance, and this represents additional unobserved allowance. An inch of this movement at the muzzle of the gun becomes an allowance of 40 inches in as many yards of range. It will be necessary to refer to this unconscious allowance again directly, because it has a bearing upon the second oft-stated proposition.