User:Degrey1/.338-06

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1 Introduction
2 History
3 Performance
4 Dimensions
- 4.1 V8 Supercar team infobox1
5 Variants
6 References

[edit] Introduction

The .338-06 is a rifle cartridge derived by necking up the .30-06 cartridge for a .338" bullet

[edit] History

Around 1945-1946 Charles O'Neil, Elmer Keith and Don Hopkins developed a cartridge they named the 333 OKH which was based on the .30-06 case necked up to .333 caliber. It was a very good big game cartridge, but suffered from the lack of good, readily available .333" diameter bullets. When the .338 Winchester Magnum was introduced in 1958, it was followed immediately by a variety of commercial .338" diameter bullets. Shortly thereafter, several individuals at different places conceived the idea of either altering their 333 OKH's or necking up 30-06 to accept .338" diameter bullets. Since .338" diameter bullets are available in weights varying from 200 grains up to 300 grains, this makes the 338-06 a versatile and effective big game cartridge.

[edit] Performance

The performance of the 338-06 is very similar to that of the 35 Whelen except that the .338" diameter bullets offer a somewhat better sectional density, .313 for the Sierra 250 grain .338" Spitzer Boattail, as opposed to .279 for the Speer .358" spitzer bullet of the same weight. In summary, the 338-06 is an excellent big game cartridge, but not as flexible or versatile as the 35 Whelen in the matter of available bullet types.

Some loadings for this cartridge include:

Source	Bullet	Weight	MV	ME	Comment
A-Square	Nosler Ballistic Tip	200 gr	2750 fps	3358 ft lbs
A-Square	boat-tailed spitzer	250 gr	2500 fps	3496 ft lbs
Nosler reloading guide	Partition	210 gr	2490 fps	...	48.0 grains of IMR 4320 powder¹
Nosler reloading guide	Partition	210 gr	2690 fps	...	52.0 grains of IMR 4350 powder¹

¹ Unconfirmed loading data. Do NOT attempt this without taking appropriate precautions

[edit] Dimensions

[edit] V8 Supercar team infobox1

Template:V8 Supercar Team 1

The dimensions of the basic case are:

Rim diameter (at base) - .473 in. (12.01 mm)
Outside diameter (at base) - .472 in. (11.99 mm)
Outside diameter (at shoulder) - .441 in. (11.20 mm)
Shoulder angle 34 deg 25 min
Case length to shoulder - 1.940 in. (49.28 mm)
Maximum case length - 2.494 in. (63.35 mm)

Image:Cartridge .338-06 R.b.jpg

[edit] Variants

.338-06 Improved

The cartridges in this family are, in order of development:

Name	Year	Bullet Diameter	Developers	Description
.333 OKH	1946	.333 in	O'Neil, Keith and Hopkins	Original case
.338-06	??	.338 in	??	Modified for .338" bullet
.338-06 Improved	??	.338 in	Ackley ?	Straighter case and sharper shoulder angle
.338-06 A-Square	??	.338 in	A-Square	Commercialised version