Selous was provided with a large number of rifles by British gunmakers in the hope of his endorsement, but he makes mention of 2 Dutch made 4 bore muzzle loading 2 grove Roer rifles which weighed about 16 pounds and fired 4 oz balls driven 16 – 18 drams of powder, an 8 bore single-barrelled rifle, a 10 bore muzzle loading single-barrelled rifle, a 10 bore breech loading single-barrelled rifle, several 10 bore breech loading double rifles, a 12 bore double breech loading smooth bore made by W.W. Greener, at least one .461 No 1 Gibbs–Metford–Farquharson rifle by Gibbs of Bristol (a favourite), a single-barrelled .450 Black Powder Express by Henry of Edinburgh, a .375 Flanged Nitro Express falling block rifle and a .303 British falling block rifle both by Holland & Holland, a .303 British Lee–Metford rifle and a .256 Mannlicher falling block rifle.