Gotta know the enemy
The Art of War, Sun Tzu
The Field Oct. 20, 1888 “A Shoot On The Moor” by Thomas de Grey Walsingham
"On August 30, when I killed 1,070 grouse to my own gun in the day, I shot with four breechloaders. No 1, a gun made in 1866 by Purdey, subsequently converted from pin-fire to central principle, to which new barrels were made last year. Nos. 2 and 3, a pair of central fire breechloaders, made also by Purdey, about 1870, for which I have likewise had new barrels. No. 4, a new gun made by Purdey this year to match the two mentioned above, but with Whitworth steel instead of Damascus barrels. The guns are all 12 bore, with cylinder 30 in. barrels, not choked."
“Whitworth steel barrels are not desirable for a heavy day's shooting. The explosion in them makes quite a different sound from that given off by Damascus barrels: there is more ring about it, and I can imagine that this might prove a serious annoyance to anyone who minds the noise of shooting. Moreover, the Whitworth barrels became hot much more rapidly than the Damascus, and this is a serious drawback...
I am replacing them with Damascus as in all my other guns.”