Читать книгу The Complete English Wing Shot онлайн

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These phenomena do not occur except at the extreme distance of 55 yards, and they are totally absent even at that distance with the choke bore and 49 grains charge. It seems therefore only to be possible when the pellets have dropped to a low velocity. At shorter ranges there is sometimes an impact difference of 200 feet a second between the pellets of the same load. So that it is material to know the force of the whole charge, and the time up the range of the leading pellets is no guide, as differences equal to 320 f.s. have occurred in one load.

Striking Velocity at Various Ranges in Foot-Secondson Mr. Griffith’s authorityBy the fastest 5 p.c. of pellets.By the next 25 p.c. of pellets.By 45 p.c. of pellets.By the mean of the bulk.By the last 3 p.c. of pellets.15 yardschoke(42)1013987974952813choke(49)105010131042965798cylinder(42)100395596292374225 yardschoke(42)825792779748684choke(49)890840806809699cylinder(42)81076975072461535 yardschoke(42)691661660632523choke(49)737699699672564cylinder(42)67263263661950445 yardschoke(42)581560549536489choke(49)633598592573527cylinder(42)56153852349448855 yardschoke(42)377365362344342choke(49)478462457427418cylinder(42)382374378370382

As these are the only chronographic tests of shot pellets ever made with a view of finding out what really takes place, the striking velocities of the various proportions of the load at different distances are given here. But although this represents the only use of the instrument for this purpose, on truly scientific principles, ever recorded in print, the author would be sorry to affirm the absolute accuracy of the instrument on this or any other occasion, although the relative accuracy of one record to the other is much more likely to be correct.