"وجهات نظر وآراء العميد جون جاكوب، قائد وسام الطُهر. مساعد النائب للملكة؛ مساعد النائب لحاكم الهند العام، وغيرهما؛ والقائد الراحل للقوات البريطانية في بلاد فارس؛ والقائد الحالي لخيالة السند غير النظامية، والمشرف السياسي على الحد الشمالي الغربي للسند." [‎٢‎٣‎٢] (٤٨١/٢٦٣)

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under its pressure, so as to fill the barrel and grooves per
fectly air-tight. This problem was speedily solved; the
fore-part of the ball was cast of zinc, in a separate mould,
of the shape of Figs. e,f.
Finally, the best shape for ball and shell was found
to be 2^ diameters in length, the cylindrical part being
1 diameter only.
These points were placed in the full-sized mould, and the
lead cast on to them, the complete ball being formed as
shown in the diagram. Subsequently, the bead form ot
the large end of the ball and shell was abandoned, and the
end is now made quite flat.
I was at first doubtful whether the small specific gravity
of the zinc would not prove of disadvantage so great as to
overcome the benefit of its hardness : but, on trial, nothing
could have proved more perfectly effective.
The 24-gauge balls, of the increased length of two and a
half and three diameters, proved admirably elfective at
ranges up to 2000 yards, which had nevei before been
attained. Ultimately the ball and shell of two and a half
diameters in length proved to be the best.
No change whatever took place in the form of the zinc
fore-part of the balls with the largest charges, while their
penetration was found enormous, being not less than fom
inches at 2000, and nearly three times that depth at
1000 yards, into very hard dry kutcha brick. At the same
time, the accuracy of the flight of these balls was tiuly
wonderful.
It may be here remarked, that in the published reports of
the Enfield rifle practice, it is stated that the twist of the
rifle o-rooves throws the ball to the right or left, according
as a right or left handed screw may be employed.
This seems to be wholly erroneous: no such effect is