Obrázky stránek
PDF
ePub

Department, will be followed. See also Circular 16, War Department, 1904.

VIII. 12-inch B. L. Mortars.-The charges, kinds of powder, and corresponding velocities for the 800-pound projectile in the 12-inch B. L. mortars are as follows:

[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small]

*Each smokeless-powder cartridge to have 10-ounce igniter (black rifle powder at each end in addition to above charges.

+Smokeless-powder charges.

NOTE. All smokeless-powder charges for mortars will be issued made up, ready for use, as the charges vary with each lot of powder.

IX. Projectiles for Moving Targets. For practice at moving targets shot or plugged shell only are allowed by drill regu lations. Hence with projectiles which are separately loaded. if filled and fused shell only are on hand, the fuses must be removed, the bursting charge withdrawn, and the latter replaced with sand to bring the shell up to its proper weight. Sawdust may be mixed with sand to fill the cavity completely, or the sand may be wet to bring up the weight. The fuse hole should be closed with a brass or iron screw plug, or, in its absence, the fuse may be reinserted. In case the work can not be done at the post with the appliances at hand, the fact will be reported to the Chief of Ordnance. Fixed ammunition will be issued upon requisition, properly prepared, for target practice. In order that ammunition may be issued in

accordance with requirements, requisitions must state in all cases whether fixed or moving targets are to be used.

X. 6 and 15 pounder, 2.95-inch Mountain, and 3-inch Field Gun Subcaliber Ammunition.-The service rifle caliber .30 ammunition must not be used in the drill cartridges for the above guns, its primer not being adapted for the blow of the firing pins of these pieces. A special caliber .30 cartridge has been adopted for this purpose, and requisition will be made for "artillery drill cartridges, caliber .30," for use with these

guns.

XI. Care of Empty Metallic Cases and Primers.-After the expenditure of ammunition in target practice with guns using metallic cartridge cases, the empty cases will be taken up on the property return of post as "empty metallic cartridge cases," under the heading provided for that purpose. Immediately after firing the cases will be decapped, well cleaned by washing inside and out, and dried.

Upon the accumulation of convenient lots of such cases they will be packed in the boxes in which received and shipped by posts in the Atlantic, Northern, and Southwestern Divisions to Frankford Arsenal; in the Pacific Division to Benicia Arsenal; and in the Division of the Philippines to Manila Ordnance Depot.

All obturating electric and friction primer cases will be cleaned immediately after firing and turned in to the post ordnance officer for shipment to Frankford Arsenal, as provided for .30-caliber shell.

XII. Drill Primers.-A drill primer, made for use with any caliber of the modern seacoast guns, Ordnance Department pattern, for drill purposes, subcaliber practice, and saluting, has been devised and will be issued by the Ordnance Department. They are issued as part of the "drill-primer outfit," one of the outfits being supplied to each company drilling at guns, by the post ordnance officer, during drill periods.

6-pdr.

15-pdr.

4-inch D.-S.

XIII. Table of Charges, Velocities, etc., for Rapid-fire and Seacoast Guns.

Weights of projectiles, powder charges, muzzle velocity, and pressure for rapid-fire and seacoast guns, service charges.

[merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small]
[blocks in formation]

45

100

55

55

Weight of charge (lbs.):

1. 125

4.75

[blocks in formation]

(40-5.50)

45-8, 2013. 25

(50-8.20

12

(40-12.00)

45-13.6

(50-13.6

[blocks in formation]

(40-2, 150

Cordite

45-2,570 $2,150

(50-2, 600

[blocks in formation]
[blocks in formation]
[blocks in formation]

34, 000 34,000 34,000

[merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small][merged small][merged small][merged small][merged small][merged small][ocr errors][merged small][merged small][merged small]

2,600 3,000 2,600 3,000 2,200 2, 250 2,550 2,250 2,550 1,200 1,020 1,325 1, 150

75

75 105 105

34,000 34,000 36,000 36,000 36,000 36,000 37,000 37,000 37,000 37,000 37,000 27,500 27,500 33,000 33, 000 + Nitrocellulose, NOTE.The weights of powder charges are average weights; charges vary with different lots of powder.

Nitroglycerin.

1,975 2,025

2,025

1,020 900 1,150 1,020

[blocks in formation]

XIV. Table of Annual Allowances for Mountain, Field, and Siege Artillery, and Machine Guns. Table of annual allowance of ammunition for target practice and instruction for batteries of mountain, field, and siege artillery, and for machine guns.

[blocks in formation]

Additional percussion primers for drill.

Subcaliber ammunition,

Kinds of projectiles.

caliber .30,

Blank cartridges

rounds per battery.

per battery.

[blocks in formation]
[blocks in formation]

For batteries of mountain, field, and siege artillery stationed at the School of Application for Cavalry and Field Artillery

and the General Service and Staff College.

3,000

480

1,200

3,000

$150

$150

2,000

100

1500

+12

2,000

§17

[ocr errors]

100 $25

$500 18125

[blocks in formation]

*Allowance of shrapnel to be furnished only when it can be used with safety, otherwise shell will be used exclusively. † With 28-second fuses. Old models of these guns use obturating (screw) friction primers.

§ Rounds per gun.

XV. Additional Allowances for Field Artillery.-Each battery of Field Artillery will be allowed such charges and primers as may be necessary for firing authorized salutes. These will be made a separate item of expenditure.

An addition of 50 per cent to the allowance given in the table will be made for each battery of Field Artillery which may have been from any cause deprived of target practice in the preceding year, but no additional allowance beyond the 50 per cent will be made in case the period during which the battery may have been deprived of target practice shall exceed one year.

At Field Artillery stations where, during a portion of the year, weather conditions prevent subcaliber practice with full charges, each battery of Field Artillery at such station will be given an additional allowance per annum of gallery-practice ammunition with subcaliber tubes, as provided for infantry and cavalry in paragraph XXII of this order.

« PředchozíPokračovat »