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Norma ECOSTRIKE .300 Winchester Magnum 10,7g picture 1
Norma ECOSTRIKE .300 Winchester Magnum 10,7g picture 2
Discontinued 2026 Prod. No: 20177502

Norma ECOSTRIKE .300 Winchester Magnum 10,7g

Intent

Hunting

Ballistic Coefficient

0.431 G1

Bullet Weight

10.7 g / 165 gr

MRD

193 m (214 yd)

Velocity

950 m/s / 3117 f/s

Energy

4828 J / 3559 ft.-lb

This product data is zeroed with a 660 cm / 26 in barrel

Rethinking Impact – Lead-free

ECOSTRIKE™ brings the latest in lead-free bullet technology. Our nickel-coated copper bullet delivers deep penetration, almost 100% weight retention and astonishing accuracy even at longer distances.

ECOSTRIKE™ is the lead-free choice for hunting medium and large game due to its excellent ability to expand at both low and high velocities. With ECOSTRIKE™ you cover all needs for a wide variety of hunts making it the perfect lead-free allround bullet.

Designed to exceed the unique and effective features of our most popular lead bullet ORYX. High BC bullet and loaded for maximum speed delivers high energy upon impact and available in a wide variety of calibres

Range

Allround

Long Range

Expansion

Controlled

Fast

Ballistic Performance

Key factors that shape bullet flight, impact and downrange consistency.

Velocity

Metrics

Imperial

V0

950 m/s

3117 f/s

V100

874 m/s

2887 f/s

V200

801 m/s

2669 f/s

V300

733 m/s

2460 f/s

Energy

Metrics

Imperial

E0

4828 J

3559 ft.-lb

E100

4087 J

3053 ft.-lb

E200

3433 J

2610 ft.-lb

E300

2874 J

2217 ft.-lb

MRD

Metrics

Imperial

0

193 m

214 yd

50

15 m

0.4 yd

80

34 m

100

40 m

1.5 yd

150

34 m

1.6 yd

200

-8 m

0.5 yd

250

-88 m

-1.8 yd

300

-209 m

-5.4 yd

Wind

Metrics

Imperial

100 m 23 mm

100 yd 0.7 in

200 m 94 mm

200 yd 2.7 in

300 m 220 mm

300 yd 6.4 in

Zeroing distance

See how different zeroing distances shift point of impact across the range.

50 m

80 m

100 m

150 m

200 m

300 m

80 m

-6.0

-2.0

-30.0

-92.0

-335.0

100 m

-5.0

2.0

-27.0

-88.0

-329.0

150 m

4.0

16.0

18.0

-53.0

-276.0

200 m

17.0

37.0

44.0

40.0

-197.0

About the caliber

300 Win. Mag.

Introduced as late as 1963 this cartridge was soon to become the most popular in the line of .300 magnums. Unlike the predecessors .458, .264 and .338 Winchester Magnums it has a longer case and a rather short neck (.264”) in order to increase the case capacity.

As a rule of thumb the neck of a cartridge should be equal to the caliber or preferably a little longer, but experience has shown that the .300 Win. Mag. has not really suffered in this respect. It can still be used in a standard-length bolt action but this means that the heavier bullets must be seated rather deep and hereby occupy some of the powder space.

Like the other .300 magnums it is at its best for hunting larger species like moose or elk at long range. The recoil is heavy, but most shooters will be able to handle it after some practice and handloads with lighter bullets are a good choice for this purpose.

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