A double .450 Express rifle.
A double 20-bore shot-gun.
If, however, I were asked to recommend a first-rate battery for East Africa, I should say:—
A single 4-bore rifle, as above, with only one sight—100 yards.
A double 8-bore, as above, with only one sight—100 yards.
A double .500 Express, as above.
A single .450 Express, as above, or .400 for long cartridge.
A 20-bore Paradox.
And a .295 rook rifle.