G+.Zri+. V/or Office . \_All rights r,served.] TREATISE ON AMMUNITION. WAR OPFICE-1902. -.v.-.^ LONDON: PRINTED FOR HIS MAJESTY'S STATIONERY OFFICE, BY HABBISOK AND SONS, ST. MARTIN'S LANK, PRINTERS IN ORDINAKY TO 1118 MAJKSTY. Andtobepurchased,eitherdirectly orthrough any Bookseller, from JiYUK & SPOTTISVVOODK, East Harding Strbkt, Flkkt Stiirit, K.C.i or OLIVER & BOVI) Edinbcroii; or E. POXSONBY, 116 Ohafton Sturet Drnu.v 1902. Price Six Shillings, UF TOO (Wt. #10 »000 6 | 0»-H*8 5681) ^ ■ PREFACE TO THE SEVENTH EDITION. This edition has been prepared by the Instructional Staff (Ammunition Branch) ofthe Ordnance College. Obdnancb Collioi, Woolwich, \8thApril, 1902. CONTENTS. PAOK Prefacetothe Seventh Edition iii Listof Abbreviations .. .. .. .. .. .. .. .. Tiii Chapter I.—Gttnpowdeb.—Composition of gunpowder.—Various descriptionsof gunpowder, and their uses.—Effect of percussionor friction.—Classification.—Packing .. 1-9 Chapter II.—Gun-cotton.—Manufacture and properties.—Issue.— Packing and transport of wet and dry gun-cotton.— Apparatus forcuttinggun-cotton.—Drying .. .. 10-19 Chapter III.—Cobditb.—Manufacture.—Properties.—Storage.—Use.. 20-25 Chapter IV.—Combustible Compounds used in Laboratory Com positions,andMiscellaneousExplosites.—Various explosives.—Ingredients used in laboratory composi tions.—Methodofmixing.. .. .. .. 26-33 Chapter X.—Cartridges,—General Remarks.—Materials used.— Gravimetricdensityandairspace.—Positionof rent.— Classification ofcharges .. .. .. .. .. 34-39 Section I.—Pondercartridge;.—Materials.—General descriptionof prismatic cartridges.—R.B.L. stores.—Blank.— Makingupand filling.—Marking.—Stations.. .. 39-58 Section II.—Cordite cartridges.—Materials.—General description. —Making upand filling.—Marking .. .. ■. 53-60 Section III.—Ganges.—Covers, cartridge.—Drill cartridges.. .. 60-65 Chapter VI.—Powder Barrels—Hints on coopering.—Metal-lined and othercases.—Zinc cylinders.—Oartridgccases .. 66-94 Chapter VII.--Eleotric Detonators and Ftzes.—Definitions.— Description of the service detona'orsandelectricfuzes. —Generalnotes .. .. .. .. .. .. 95-109 Chapter VIII.—Tubes and Stores connected with them.—Use of tubes.—Friction tubes, copper and quill.—Electric tubes.—Miscellaneous tubes.—Vent sealing tubes.— 1'riunrs, vent, cordite.—Drill tuber.—Stores used with vents alir.gtubes—Lanyards.—Ventservers, &c. .. 110 141 Cha/er IX.—General Remark* on Fuzes.—Uses nnd c'a«se4 of fuze-'.—Eii'C boh' gauges.—Gene al remarks on wood ti no fuzes.—Go. e.al remarkson inetul hue*.—General remark-*on percussion fuze*.—Blinds.—Prcinitures .. 112-153 Ch.iptor X.- PERCUSSION Fuzes—Direct action.—D.A. delay.—D.A. impact.—Pettmm's U.S —Small.—R.L.—B.fj. plain.— Base fuzes 154-168 CIa>*cr XT.—Tike and Combined Fuzes — 13 sconds woid time fuzes. —Time and percussion fuzes No. 56, Mark IV, 57, 60, and 01.—'lime and percussion fuzes, middle and short.—.Middle sensitive time fuze—E timo fuze 169-181 CONTKNTN, nam Chapter XII.—General Remarks on Projbctilks for Rifled Obdxance.—Systems of Hiding. — Windage. — Clearance.—Lengthandweightofprojectiles.—General remarks.—Armour-piercingprojectiles.—Commonshell. —Shrapnelshell.—Caseshotandstarshell 182-194 ChapterXIII.—ProjectilesfobB.L., Q.F., on Q.F.C. Guns.—Driving bands.—Augmentingstrips.—Commonshell.—Shrapnel shell.—Star shell.—Lyddite shell.—Armour-piercing and Palliser projectiles.—Cane shot.—Drill shell.— Papershot 195-230 Chapter XIV.—Gas-chbces.—Why introduced for R.M.L. guns.— Material.—Attachedgas-checks.—Automaticgas-checks. —Special gas-checks 231-240 Chapter XV.—Projectilesfor R.M.L. Guns (7-inchandupwards). —Common shell.—Double shell.—Shrapnel shell.— Palliser projectiles.—Caseshot.—Papershot .. .. 241-256 Chapter XVI.—Projectilb3forMediumand SieobR.M.L.Guns and Howitzers.—Common shell.—Incendiary shell.— Shrapnelshell, starshell.—Pallisershotand case shot. -Papershot 257-267 XVII.—Projectiles forR.M.L. FieldandMountainGuns. —Studded shep.—Studlesa shell.—Star shell.—Case shot 268-280 ChapterXVIII.—Projectiles fob R.B.L. Gunb on theLead-coated Stbtem.—Shortnotesonprojectilesforrifledguns.— Distinguishingmarksforprojectiles,R.B.L. introduc tion.—Segment, common, shrapnel shell. —Case shot.—Solid shot.—Summary of rifled projectiles.— Distinguishingmarks .. .. .. .. 281-298 Chapter XIX.—Ammunitionfob Quick-Firino Gunb.—Service.— Practice.—Drill and saluting cartridges.—Boxes.— Cases. — Examination. — Rectifying. — Filling.— Packing 299-338 Chapter XX.—Filling Shell.—Implements, fuze, shell, and cartridge.—Theirdescription and use.—Sundry stores connected with projectiles.—Examination of empty shells.—Paintingempty and filled shell.—Instructions forfillingshells.—Storage, packing, and transport of filled shells.—Emptying shells.—Preparingand fixing fuzes 339-383 Chapter XXI.—xVimino Rifle, Machine Gun and Small Arm Ammunition.—Serviceand blank cartridges.—Boxes. Distnguiihingmarks .. .. .. .. .. 334—413 Chapter XXII.-^Rockets and Lights.—War rockets.—Cause of motion.—Variouspatterns.—Use.—Ageand examina tion.—Range.—Machines.—Life-saving and buoyant rockets and machines.—Signalrockets and machine.— Portfires. — Lights. — Quick and slow match.— Instantaneous and safety fuze.—Signal, fog, rocket sound.—Trinity House mid detonator.. .. .. 414-43fi I'hipirr .Will.—Append X.—Xomenclature of Magazines and Stores. — Loculity aud construction of magazine*. — Classification of explosives.—General regulations for wagnines and ammunition stores.—Magazine con- dition*.—Precautions against fire.—Ventilation.— Lighting.—Laboratory operation*.—Watting gun- I'owdei .. .. 437-459 Tables 460-558 vi CONTENTS. LIST OF PLATES. TO VACB PASS Plate I.—Apparatusformixingfulminatecomposition forpercussion caps 82 „ - II.—Cartridge, B.L., 12-inch,87 lb. Cordite, Sizes 50and 3f, MarkI|N| 68 „ III.—Cartridge, B.L., 6-inch, 80 cwt. Howitzer, 1 lb. 12 OS. Cordite,Size 6, Mark II | L | 69 „ LIV.—Case, Powder,cylindrical, B, large, Mark II | N | .. 81 ' V.— „ „ „ S.Mark III |N| .. .. 82 „ " VI.—Tubes,Ventsealing, percussion, MarksIVandVI .. 119 „ ^ VII.—Tube,Ventsealing,electric, P, Mark VII 121 „ VIII.— „ „ „ electric, wireless, P, MarkII .. 122 IX.— „ Friotion,T, Mark IV | L | 127 „ X.—Fuze, Percussion, direct action, with plug, No. 3, MarkIII 164 „ - XI.—Fuse, Percussion, small,No.8,Mark IV | L | .. .. 160 „ XII.— „ „ Base,large, No. 11, Mark II .. .. 166 „ XIII.— „ Time and Percussion, No. 56, Mark IV .. .. 172 XIIIa.- „ , 60, „ I .. .. 176 XIV.— „ „ „ middle,No. 64,MarkIII .. 176 XV.— „ „ „ short,No. 65, Mark III .. 177 „ • XVI.— „ „ sensitive,middle, No. 24, Mark I .. .. 178 „ XVII.—Shell,B.L.,Common, Pointed, 92-inch, C.S.,Mark IV .. 206 „ " XVIII.— „ „ Lyddite, Common,5-inchHowitzer, Mark III | L | 208 „ ^ XIX.—Shell, Q.F., Armour-piercing, 47-inch, F.S., Mark V .. 211 „ ~~ XX.— „ B.L., Shrapnel,92-inch, CastSteel, MarkVI | N | 214 „ ^- XXI.— „ „ or Q.F. Shrapnel, 12-pr., 12, 8, or 6 cwt., Mark V 216 „ XXII—Shell, B.L., Star,5-inch Howitzer, Mark II | L | .. 218 „~~ XXIII.—Shell,B.M.L.,common,studless, 10-inch, MarkI ,. 286 „ XXIV.— „ „ Shrapnel, 25-inch, Mark IV |L| ..278 XXV.— „ „ Star,25-ineh, Mark IV |L| .. ..276 „ XXVI— 7-pr., Mark VI | L | 276 XXVII.—Distinguishing MarksforProjectiles.. .. .. .. 296 „ XXVIII.—Cartridge, Q.F. 6-pr., Cordite, Steel Shell,MarkVII .. 299 „" XXIX.—Fuse, Percussion, Base, Hotchkiss,Mark IV .. .. 800 „ XXX.—Cartridge, Q.F. 4-7-inch, 6-lb. 7-oz. Cordite, Size 20, Mark V 310 „ XXXI.—Cartridge,Q.F. orQ.F.O., Primer, Electric, Large,MarkV 818 „ XXXII.—Distinguishingmarksfor8.A. Ammunition Boxes .. .. 411 LIST OF TABLES. FAGS 1. Dryguncotton, chargesandprimers .. .. .. •• 46u,461 1a. Wetguncotton,torpedo charges 462 1b. „ „ slabs *63 2. Cordite,varioussizesused 464.466 ZA. „ packing 468 CONTENTS. vii PAGE 3. Powder cartridges, B.L. guns, service .. ,. .. .. .. 467 4. „ „ B.M.L. guns, 1-inchand up.. .. .. .. 468 5. „ ,, „ mediumandlightgunaandhowitzers .. 469 6. Cordite „ B.L. andB.M.L. 470-474 7. Powder „ „ „ for use ingunneryships, &c. .. 475 8. „ „ Serviceand salutingB.B.L. guns .. .. .. 476 9. „ „ B.L.,saluting 477 10. „ „ B.M.L.,blankorsaluting .. 478 11. Cylinders,zinc, forcartridges 479-483 llA. „ „ internal dimensionsof .. .. .. .. .. 484 12. Cases,cartridge .. .. 485 13. Detonators, electrictubes, fuzesand primers .. .. .. 486-488 14. Tubes,rent, sealing 489,490 16 drill 491 16. Fuzes, LandService, use of .. 492-495 17. „ Naval Service,useof 496,497 18. Projectiles, takinggascheoks .. .. .. .. 498,499 19. Burstingchargesof common, double,armour-piercing,andringshell 500-502 SO. Shot, B.L., PalUser 503 21. Shell, B.L., Q.F.or Q.F.C., commonand commonpointed .. 604-509 32. „ „ „ „ „ pointedpractice .. .. .. 510 23. „ „ „ „ andB.M.L. lyddite, common .. 511,512 24. „ „ „ „ armour-piercing .. .. .. .. 513 26. „ „ „ „ shrapnel 514-517 26. Shot,B.L., case 518 27. Shell, B.M.L., commonand double,studded (heavy) .. .. 620,521 28. „ „ shrapnel, studded (heavy).. .. .. .. .. 622 29. Shot, „ Palliser (formerlyshell), studded (heavy) .. 523-525 30. Shell, „ „ studlesB 626 31. Shot, „ „ „ 527,528 32. „ „ „ studded (heavy) .. 530,531 33. „ case, 7-inch,and upwards.. .. .. .. 632-634 34. Shell, „ common, studless (heavy);.. .. .. .. 535,636 85. „ „ shrapnel, studless (heavy) .. .. .. .. 537 36. „ „ common,mediumand siege gunsand howitzers 538,539 37. „ „ shrapnel, medium andsiege guns, andhowitzers .. 640 38. Shot, „ case, medium and siegeguns andhowitzers .. .. 541 39. Shell, „ common, double,andring, fieldandmountainguns .. 542 40. „ „ shrapnel,fieldandmountainguns .. .. 643,544 41. Shot, „ case, fieldandmountain guns .. .. .. .. 545 42. Shell, B.B.L.,common 546 43. „ „ segment .. .. .. .. .. .. .. 647 44. „ „ shrapnel .. .. .. .. .. .. .. 648 46. Shot, B.B.L., case 649 46. Packagesofcartridges, aimingrifle, S.A. and M.Q-. (ball) .. .. 550 47. Packagesofcartridges, S.A. andM.G-. (blank) .. .. .. .. 551 48. Combustiblecompositions forlaboratorystores .. .. .. 552-554 49. Paints andothernon-combustiblecompositionsfor laboratory stores 555-557 50. Analysisofmetals .. .. .. .. .• .. .. .• 65? viii LIST OF ABBREVIATIONS. A.C. Army Circular. A.O. Army Order. A.O.S. Army Ordnance Regulations. A.P. Armour Piercing. B.L. Breeeli Londing. C. Common, to both Land and Naval Service. C.S. Cast Steel. C.I. Cast Iron. B.O.C. Elswick Ordnance Company. F.S. Forged Steel or Field Service. F.G. Fine Grain. G.G. Gardner-Gatling. G.S. General Service. L.S. or L. Land Service. L.G. Large Grain. M.G. Machine Gun. M.H. Martini-Henry. M.L. Muzzle Loading. N.S. or N. Naval Service. P. Pebble. Q.F. Quick Firing. Q.F.C. Quick Firing Converted. R.B.L. Rifled Breech Loading (Armstrong). R.F.G. Rifled Fine Grain. R.L. Royal Laboratory. R.M.L. Rifled Muzzle Loading. S.B. Smooth Bore. S.A. Small Arm. V.S. Vent Sealing. § Paragraph List of Changes. [N.B.—Tliis edition is ccrrected up to 1st April 1902. As seme ti/)o- graphicnl errors may hare occurred in publication, it is requested that, should any be discovered, they may be at once pointed out, in tc iti-ig, tu Ihe Under Secretary of Sta'efor War.] TREATISE ON AMMUNITION. CHAPTER I.—GUNPOWDER. COMPOSITION.—PROPERTIES.—CLASSIFICATION.—VARIOUS DESCRIPTIONS OF GUNPOWDER AND THEIR USES. Explosives are mainly usnd for the propulsion of projectiles, or as disruptive agents. The explosives commonly met with in the service are (i) gunpowder, which is used both as a propellantand for disruptive purposes ; (ii) cordite, which at present is only used as a propellant; and (iii) gun-cotton, which is used as a disruptive agent. Explosives which may be-met with in the Service arc given in Misoel- Chapter IV. laneou*. Explosives used for the propulsion of projectiles are sometimes termed " propulsives" or "propellants," and those for disruptive purposes "dismptives." Gunpowderfor many centuries was the only explosive in general use, but in recent times many other explosives have been invented. An account of the manufacture, and actionwhen fired of gunpowder, can be found in other works.* Gunpowder is an intimate mechanical mixture of saltpetre, sulphur, and charcoal. A short account of the properties of these ingredients will be found at p. 29. In England, black powder is, and for a long time has been, made of the ingredients mentioned above in the following proportions : saltpetre 75 parts, charcoal 15 parts, sulphur 10 parts. The proportions of Prism1 brown and S.B.C. powders are— saltpetre 79 parts, charcoal 18 parts, sulphur 3 parts ; and of E.X.E. powder,saltpetre 77,", parts, charcoal 17|§parts,and sulphur 5 parts. In addition from 1*5 to 2-2 per cent, of water is a recognised ingredient in brown powders. The charcoals for these powders are composed of sp?cial material and the preparation of them isconfidential. • "Treatise on Service Explosives, 1900"j "Researches oi Explosives, by Captain Sir Andrew Noble, K.C.B. (late R.A.), F.K.S., Ac, unci Sir Frederick Abel, Bart., F.RS., Ac; "Notes on Explosives," by Dr. W. R. Uodgkinson, F R.S.E., Ac.; Professor Bloxnm's "Chemistry"; Professor Vivian Lewes'a "8erviceChemistry," ani"The ManufactureofExplosives," bv 0*ca- G.ittuiann, ' c.M.I.C.E., Ac. (5581) b 2 The explosiveness of powder of a given composition can be modified by varying the charcoal, the amount of moisture, and its physical condition. The effect of the above variations on fired powder is discussed in "Treatise on Service Explosives." Speaking generally, a large grained powder, highly glazed, made from highly-burnt charcoal, and of high density, other things being equal, will burn slower and so have less explosiveness than a powder of opposite characteristics. If, however, the grain be very small as in mealed powder, the interstices between the grains are not sufficiently large to allowa free passage of flame, and so a charge of mealed powder would ignite in one place only and would burn comparatively slowly. On the introduction of rifled ordnance, it was found advisable to use a slower burning powder than that used with S.B. guns. More work is thrown on a rifled gun than on a S.B. gun of the same calibre. A charge of slow-bnrning powder given rise to a lower maximum pressure than a charge of quick-burning powder, and the pressure is better sustained throughout the bore, and so for equal velocities with a projectile of a given weight the slow-burning powder strains the gun less. To obtain a slow-burning powder, the density and size of grain were increased on the introduction of rifled guns, and "K.L.G." density 17, size ^-inch to ^-incb, superseded " L.G.," size TL-inch to ^-inch. Again, when K.M.L. guns of 7-inch calibre and upwards weremade, " P.,"a powderof higherdensityandlargergrain(density l-75, size $-inch), which burns more slowly and strains the gun less than " li.L.G.," was adopted. Then " P.'J," a powder of larger size (about 1'5-inch cubes) was manufactured for the heavier R.M.L. guns. , To ensure regularity of burning, moulded or prism powders were next introduced. These powders are moulded into regular hexagonalprisms, having a hole running through the centre of each. Thus not only is.the powder of uniform size, but the pressure of the gas is better sustained, since as each prism barns, the decrease in surface- on the outside is to some extent counterbalanced by the increase of the inside surface of the perforation. It is also probable that after a certaintime the prism breaks up, thusformingadditional surfaces for combustion, nnd consequently for the evolution of gas- , Moulded black powders were first introduced, to be shortly afterwards superseded by moulded brown powders. The brown powders have been very satisfactory in that the pressures they give are moderate, while the velocities arc high, but they are far from being smokeless. They are more difficult to ignite, and require a primer of a few prisms of black powder. For the short bore of the 7-pr., for smallarms and machine guns, and forshrapnelshellwithburstingcharges inthebase,quick-burning powders are required. Such powders have small grain. Advantage?. The advantages of gunpowder are :—■ (a) Its rate of combustion is gradual comparedwith thatof many other explosives; by altering the proportions of the in gredients and varying the mechanical processes of manu facture, its explosiveness can bo modified so as to suit every description ofweapon. (&) The ingredients are easily produced, (c) They are comparatively cheap.
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