Xmm Japanese Arisaka

The 7.7mm Arisaka was adopted by the Japanese Military in 1939 to replace the older 6.5mm military cartridge; however, both cartridges were in use throughout WWII. The 7.7mm Arisaka is very similar in performance to the .303 British cartridge and uses the same diameter bullets. However, the 7.7mm Arisaka is a rimless case whereas the British round is rimmed.

When loaded with proper bullets, the 7.7mm Arisaka is adequate for hunting most North American big game. With the exception of military rifles brought home as war souvenirs or recently imported, very few firearms chambered for this cartridge are found in the United States.

There is no SAAMI recommended pressure limit for the 7.7mm Arisaka. Norma factory ammunition produced pressures of 47,000 P.S.I. in our test barrel. These loads do not exceed that pressure.

7.7x58mm JAPANESE ARISAKA

Gun

DOUGLAS

Max Length

2.284"

Barrel Length

24"

Trim Length

2.260"

Primer

CCI 200

OAL Max

3.130"

Case

NORMA

OAL Min

--

START LOADS

MAXIMUM LOADS

Cartridge

Bullet

Powder

Grains

Vel.

Powder

Grains

Vel.

P.S.I.

Length

Comment

HDY 150 SP

2700

48.5

2602

2700

51.0

2768

46,400

3.175"

*

4350

46.8

2346

4350

52.0

2666

39,500

Compressed

3100

46.8

2132

3100

52.0

2423

31,000

Compressed

SRA180 SP

2700

44.2

2318

2700

46.5

2466

45,700

3.150"

4350

46.8

2240

4350

52.0

2545

42,300

Compressed

3100

46.8

2024

3100

52.0

2300

31,900

Compressed

* Over Recommended MAX OAL

* Over Recommended MAX OAL

Surface Finish Rmr
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