What is the .243 Winchester?

The .243 Winchester is a factory rifle cartridge in the Winchester Repeating Arms Company cartridges family, introduced in 1955.

What bullet diameter does the .243 Winchester use?

The .243 Winchester uses a bullet diameter of 0.243 inches.

What is the case type of the .243 Winchester?

The .243 Winchester has a Rimless, Bottlenecked case type.

What primer does the .243 Winchester use?

The .243 Winchester uses a Large Rifle (.210") primer.

What cartridges are in the Winchester Repeating Arms Company cartridges family?

The Winchester Repeating Arms Company cartridges family includes the .243 Winchester and other related cartridges. Browse the full family on OpenCartridge.

.243 Winchester

Rifle Factory

Family	Winchester Repeating Arms Company cartridges
Year	1955
Case Type	Rimless, Bottlenecked
Primer	Large Rifle (.210")

Dimensions (inches)

Bullet Ø	0.243
Case Length	2.05
Neck Ø	0.276
Shoulder Ø	0.454
Base Ø	0.47
Rim Ø	0.47
Total Length	2.71

Parent Cases

.308 Winchester

References

Ammo Ency. 6th Ed. p. 621

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