Winchester

Just as the .44-40 is not truly a .44 caliber, the .38-40 is not a .38 caliber cartridge. Originally introduced by Winchester in 1874, the .38-40 WCF is based on the .44-40 WCF case necked down to handle a .401" diameter bullet.

It was chambered in Winchester's Model 73 lever action rifle. Shortly thereafter Colt began chambering revolvers for it. Its popularity prompted other manufacturers to chamber rifles for it as well. At one time, Winchester produced a high pressure, high velocity loading for use in rifles only. This high pressure ammunition was not intended for use in revolvers.

As currently loaded by Winchester, the pressure and performance of this cartridge is quite moderate in deference to the older guns chambered for it.

This data was developed in a pressure barrel and then fired for velocity through a Ruger 6°" barrel Blackhawk revolver.

The SAAMI Maximum Average Pressure for the .38-40 is 14,000 C.U.P.

.38-40 WINCHESTER

Gun

RUGER

Max Length

1.305"

Barrel Length

6° "

Trim Length

1.285"

Primer

WLP

OAL Max

1.593"

Case

WW

OAL Min

1.560"

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

C.U.P.

Length

Comment

145 (L) FP

N100

5.2

903

N100

5.8

1027

13,700

1.580"

Bull-X

No.2

5.2

894

No.2

5.8

1016

13,200

155 (L) RN

5744

14.8

891

5744

16.5

1013

12,700

1.585"

Penny's

165 (L) FP

N100

4.7

843

N100

5.2

959

13,700

1.580"

LY 40143

No.2

4.9

832

No.2

5.4

946

13,500

Penny's

185 (L) FP-BB

N100

4.5

778

N100

5.0

885

13,000

1.580"

Colorado

S1000

5.0

777

S1000

5.5

884

13,500

Cast Bullet

No.2

4.5

766

No.2

5.0

871

13,400

5744

13.0

792

5744

14.5

900

11,900

1680

21.2

964

1680

23.5

1095

14,000

2015

22.5

821

2015

25.0

933

13,800

5,87mm

.401 10,185mm

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

C.U.P.

Length

Comment

200 (L) SWC

N100

4.3

735

N100

4.8

836

13,100

1.580"

Penny's

No.2

4.3

717

No.2

4.8

815

12,800

SRA

150 HP

N100

5.3

862

N100

5.9

980

13,600

5744

15.7

914

5744

17.5

1039

13,200

1680

24.8

1096

1680

27.5

1246

13,200

2015

27.0

994

2015

30.0

1130

13,900

SPR

180 HP

N100

4.6

734

N100

5.1

835

13,800

5744

14.8

845

5744

16.5

961

13,700

1680

23.0

1052

1680

25.5

1196

14,000

2015

24.3

864

2015

27.0

982

14,000

Hunting Mastery Selected Tips

Hunting Mastery Selected Tips

Deer hunting is an interesting thing that reminds you of those golden old ages of 19th centuries, where a handsome hunk well equipped with all hunting material rides on horse searching for his target animal either for the purpose of displaying his masculine powers or for enticing and wooing his lady love.

Get My Free Ebook


Post a comment