Ball and shot gun

[2][3] The original 12 bore loading from Holland and Holland fired a 750 gr (49 g) pure lead bullet that was accurate to ranges up to 150 yd (140 m), Westley Richards developed a 12 bore loading that fired a 735 gr (47.6 g) LT-capped[note 1] bullet at slightly over 1,300 ft/s (400 m/s) which was accurate to ranges up to 200 yd (180 m).

[3] In his work Thirty-seven years of big game shooting in Cooch Behar, the Duars, and Assam, Maharajah Nripendra Narayan of Cooch Behar states the 12 bore Paradox "is an excellent weapon for Tiger, Bear or Leopard at short ranges up to 100 yards.

He states he used a paradox gun chiefly for shooting leopard, loading one barrel with a 750 gr solid lead bullet and the second with 1.25 oz (35 g) of buckshot.

[3] In his Wild Beasts and Their Ways, Sir Samuel Baker described the 12 bore paradox gun as "a most useful weapon ..... wonderfully accurate within a range of 100 yards" and that "the penetration and shock are most formidable".

At least 12 paradox guns were purchased by the Royal Naval Air Service[note 2] for use by UK based patrol aircraft and they remained in use until suitable .303 British incendiary ammunition was developed.