Hadcock, and the results are in agreement with practical experience.
" Some allowance had to be made for the inclination of the line of metal to the axis " (Lloyd and Hadcock, p. 32).
In replying to the guns of Fort Elsinore no execution was done, as the long range made it impossible to lay the guns (Lloyd and Hadcock, P. 33).
- OWen, Modern Artillery; Lloyd and Hadcock, Artillery, its Progress and Present Position; Lissak, Ordnance and Gunnery; Colonel H.
Hadcock, late R.A., and published in the Proc. R.A.