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3.  Revolvers and Pistols used in the Experiments.

BALLISTICAL DATA

Make

Model

Caliber

Shots in

Powder Charge

Bullet

Velocity in feet per second at

Muzzle Enegry

Samples

Remarks

 

 

 

Mag. or Cyl.

Weight Grs.

Kind

Weight Grs.

Kind

Shape of Point

Muzzle

37 yds.

75 yds.

in foot-pounds

 

 

Luger Automatic

Medium Barrel

.3012 [7.65mm]

8

6.2

Smokeless

92.6

Jacketed

Truncated cone

1420

1258

1133

415

1

High charge.

Luger Automatic

Short Barrel

.3543 [9mm]

8

5.2

Smokeless

123.5

Jacketed

Truncated cone

1048

985

930

301

2

Normal charge.

Colt’s Revolver

Army, 1903

.38

6

3.3

Bulls eye

148

Lead

Sph. Seg.

763

727

690

191

3

Service bullet.

Colt’s Automatic

Military 1902

.38

8

6.6

Smokeless

130

Jacketed

Sph. Seg.

1107

1022

953

354

4

U.M.C. Co’s make.

Colt’s Automatic

Military 1902

.38

8

6.5

Smokeless

120

Soft nose

Sph. Seg.

1048

980

920

293

3

Also known as the metal patched bullet.

Colt’s Revolver

New Service

.45

6

4.8

Bulls eye

250

Lead

Blunt

720

692

668

288

6

U.M.C. Co’s make.

Colt’s Revolver

New Service

.45

6

4.8

Bulls eye

220

Lead

Hole in point

700

691

683

239

7

U.M.C. Co’s make.

Colt’s Revolver

New Service

.455

6

6.4

Cordite

218.5

Soft Lead

Cupped

801

704

616

288

8

S.A. Ball, Pistol Webley Cordite, Mark III, known as the “Man-stopper.”

Colt’s Revolver

New Service

.476

6

18.0

Black

288.1

Lead

Sph.Seg.

729

686

646

340

9

Government Mark III, solid brass, central fire, Eley Bros. Ltd., Manufacturers, London, England

A consideration of this table shows as to:

    1st:   Caliber.  The largest (0.476) and the smallest (0.3012) calibers used in military pistols and revolvers, so far as known to the Board, were selected.
    2nd:  Material.  Lead, jacketed and metal patched (soft nose) bullets were used.  The points of some of the jacketed bullets were filed so as to expose the lead.  An explosive bullet was also tried.
    3rd:   Form of Bullet Point.  These variations included the truncated cone, the ordinary spherical segment, the blunt-point, the cupped point and a hole in the point filled with a copper shell, primed and charged.
    4th:   Bullet Weights.  These varied from 92.6 grains to 288.1 grains.
    5th:   Initial velocities.  These varied from 700 f.s. to 1420 f.s.
    6th:   Muzzle Energies.  These varied from 191 ft. lbs. to 415 ft. lbs.
    7th:   Combinations of Elements.  A light weight, jacketed, small caliber bullet with high velocity, a heavy weight, large caliber, lead bullet with comparatively low velocity, a jacketed bullet of intermediate weight, caliber and velocity, and a lead bullet with intermediate weight and caliber, but with low velocity, were tried.

    The revolvers and pistols used were selected on account of their giving the extensive range of ballistical elements mentioned above and not with a view of testing their mechanisms.

    Revolvers and pistols being essentially short range weapons, 75 yards were fixed as the extreme range, 37-1/2 yards as the medium range and near the muzzle as close range, in all experiments.

    Two samples of each bullet, Exhibits A, B, C, D, E, F, G, H, and I are forwarded herewith.

    The charges for long and medium range were reduced so as to give the required velocity at three feet from muzzle, in order to insure hitting proper point with bullet.

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