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.450 Marlin

US rifle cartridge

Field	Value
name	.450 Marlin
image	450Marlin.JPG	image_size = 300px
caption	.450 Marlin, left and [.458 Winchester Magnum](458-winchester-magnum), right
origin	United States
type	Rifle
designer	Hornady and Marlin Firearms
design_date	2000
manufacturer	Hornady
production_date	2000–present
parent	[.458×2-inch American](458x2-inch-american)
case_type	Belted, straight
bullet	.458
base	.5121
rim_dia	.528
case_length	2.10
length	2.55
rifling	1:20 in (508 mm)
primer	Large rifle
max_pressure	43500
bw1	430
btype1	LBT-LFN (Lead Long Flat Nose)
vel1	1900
en1	3446
bw2	405
btype2	JFN (Copper Jacketed Flat Nose)
vel2	1975
en2	3507
bw3	350
btype3	JFN
vel3	2100
en3	3427
bw4	325
btype4	FTX (Hornady Flex Tip Expanding LEVERevolution)
vel4	2225
en4	3572
test_barrel_length	(SAAMI) 24 inches (610 mm)
balsrc	Buffalo Bore Ammunition, Hornady Ammunition,

The .450 Marlin is a firearms cartridge designed as a modernized equivalent to the .45-70 cartridge. It was designed by a joint team of Marlin and Hornady engineers headed by Hornady's Mitch Mittelstaedt, and was released in 2000, with cartridges manufactured by Hornady and rifles manufactured by Marlin, mainly the Model 1895M levergun. The Browning BLR is also now available in .450 Marlin chambering, as is the Ruger No. 1. Marlin ceased manufacture of the 1895M rifle in 2009. In October 2022 it was rumored that Ruger Firearms, the new owner of Marlin Firearms, may be reintroducing the 450 Marlin in their Model 1895 guide gun, but this has not been confirmed by Marlin or Ruger.

Design

While ballistically similar to the .45-70, the .450 Marlin was not developed from the .45-70. Rather, the .450 Marlin was developed from the wildcat .458×2-inch American, which was based on the .458 Winchester Magnum. This places the .450 Marlin in the .458 Winchester family of cartridges, though it is more easily understood as a "modernized" .45-70. It is possible to handload the .45-70 to levels that can destroy older firearms such as the Trapdoor Springfield. The .450 Marlin offers the ballistics of such "hot" .45-70 loads without the risk of chambering in firearms that cannot handle its higher pressure.

The belt has been modified to prevent it from chambering in smaller-bore 7 mm Magnum or .338 Magnum rifles. The .45-70 and .450 Marlin cannot be cross-chambered, but rifles chambered for the American can be modified to fire the .450 Marlin.

Visually, the case resembles that of the .458 Winchester Magnum with a wider belt. The cartridge is most useful for hunting big game at short ranges, being accurate at ranges of 150 to. The cartridge is capable of taking any large game animal in North America including large elk, brown bear, and moose.

One potential advantage of the .450 Marlin was its ability to chamber easily in bolt-action rifles, essentially becoming a ".45-70 bolt action" cartridge. This idea, however, was only utilized by one company: Steyr-Mannlicher. However, many companies such as E.R. Shaw Inc. and EABCO have helped numerous owners convert their existing bolt-action rifles to .450 Marlin, fulfilling the cartridge's inspired purpose.

Dimensions

The dimensions are subject to change. The most current dimensions are available from the SAAMI website, standard Z299.4 – 2015, at pages 148 and 344.

References

Association, N. R. (n.d.). Tested: Winchester M94 te lever-action in .450 Marlin. An Official Journal Of The NRA. https://www.americanrifleman.org/content/tested-winchester-m94-te-lever-action-in-450-marlin/
"Heavy 450 Marlin Rifle & Gun Ammunition". Buffalo Bore.
"450 Marlin 325 gr FTX LEVERevolution ballistics". Hornady.com.
(2002). "450 Marlin". Gregory J. Mushial.
Taffin, John. (June 2001). "The .450 Marlin: A Magnum In Disguise". Guns Magazine.
(2007-10-09). "The .450 Marlin cartridge". Airborne Combat Engineer.
Simpson, Layne. (2005). "Layne Simpson's Shooter's Handbook". Krause Publications.
".450 Marlin". ChuckHawkes.com.
"Caliber and Twist Rates".
"EABCO Accuracy Barrels".

Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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