334 
MINUTES OF PROCEEDINGS OF 
(3) The 56 cwt. 32-pr., No. 24 (A), rifled in May 1856, has stood 345 
rounds. 
(4) The 58 cwt. 32-pr., No. 2339 (Walker's, Min. 3087), especially rifled, 
to be tested for endurance, resisted to the 54th round (Min. 6363), viz. :— 
Charge, 5'5 lbs.; 10 rounds, shot, 48 lbs. 
„ 10 
„ 72 
„ 10 
„ 96 
„ 10 
„ 115 
„ 10 
„ 140 
„ 4 
„ 165 
54 Burst 26th March, 1862. 
(5) Another 58 cwt. 32-pr., No. 8541, Lowmoor (Min. 6885), similarly 
rifled, resisted to the 57th round, viz.:— 
Charge, 5-5 lbs.; 10 rounds, shot, 48 lbs. 
„ 10 „ 72 „ 
„ 10 „ 96 „ 
„ 10 „ 120 „ 
„ 10 „ 144 „ 
„ _7_ „ 163 „ 
57 Burst 18th June, 1862. 
(6) A 95 cwt. 68-pr., No. 6095 (Walker's, Min. 6489), especially rifled, 
to be tested for endurance, resisted to the 60th round, viz.:— 
Charge, 7|lbs.; 10 rounds, shot, 90 lbs. 
J} 
10 
„ 135 
10 
„ 180 
„ 
10 
„ 225 
Charge, 7\ lbs.; 10 rounds, shot, 270 lbs. 
„ 10 „ 315 „ 
60 Burst 17th April, 1862. 
(7) Another 95 cwt. 68-pr., No. 6439 (Lowmoor, Mins, fffj), similarly 
rifled, resisted to the 60th round, and remains apparently serviceable, as there 
is no appearance of fissures round the vent.* 
(8) A third 68-pr., No. 8282, has fired 300 service rounds, charge 
generally 7*5 lbs., projectile 87 lbs., and is uninjured. 
(9) A fourth 68-pr. block, with 32-pr. bore. No. 1348 (Min. 6490), 
has fired 110 rounds. 
16. Relative accuracy .—The order of accuracy in the two competitive 
trials was— 
First Trial. 
Second Trial. 
Haddan. 
Britten. 
Jeffery. 
Scott. 
Lancaster. 
Thomas. 
French system. Britten. 
Shunt. -- 
Jeffery. Lancaster. 
Haddan. --- 
The bore of the 32-pr. being 17 calibres long, these guns may be best 
compared with the naval or shorter Armstrong 40-pr., the bore of which is 
17*7 calibres long. The Committee subjoin the results obtained with two 
guns of this description, upon occasions of experimental trial. The relative 
charge is greater than that of any of the competitors for rifling cast-iron guns, 
except Mr Haddan and Commander Scott. 
* No. 6439 subsequently fired 10 rounds, cylinders 369lbs.; 10 rounds, cylinders 402‘76 lbs., and 
burst the 81st round with a cylinder of 450 lbs. Minutes 7054—7450. 
