.360 Buckhammer

.360 Buckhammer
Comparison of some straight-wall, left to right: .350 Legend, .360 Buckhammer, .400 Legend, .450 Bushmaster
Type	Rifle
Place of origin	United States
Production history
Designer	Remington
Designed	2022
Manufacturer	Remington
Produced	2023–present
Specifications
Parent case	.30-30 Winchester
Case type	Rimmed, straight
Bullet diameter	.3590–.0030 in (9.119–0.076 mm)
Land diameter	.349 in (8.9 mm)
Neck diameter	.3798 in (9.65 mm)
Base diameter	.4195 in (10.66 mm)
Rim diameter	.506 in (12.9 mm)
Rim thickness	.048 in (1.2 mm)
Case length	1.80 in (46 mm)
Overall length	2.35 to 2.5 in (59.69 mm to 63.5 mm)
Rifling twist	1 in 12 in (300 mm)
Maximum pressure (SAAMI)	50,000 psi (340 MPa)
Ballistic performance
Bullet mass/type Velocity Energy 180 gr (12 g) Remington Core-Lokt SP 2,400 ft/s (730 m/s) 2,302 ft⋅lbf (3,121 J) 200 gr (13 g) Remington Core-Lokt SP 2,200 ft/s (670 m/s) 2,149 ft⋅lbf (2,914 J)
Test barrel length: 20 in Source(s): SAAMI[1]

The .360 Buckhammer, also called 360 BHMR (9.1×46mmR), is a SAAMI-standardized^[2] straight-walled rifle cartridge developed by Remington Arms Company.^[3] The cartridge was designed for use in American states that have specific regulations for deer hunting with straight-walled centerfire cartridges.

At the 2023 SHOT Show in Las Vegas, Nevada, the .360 Buckhammer cartridge was introduced by Remington Arms. The Sporting Arms and Ammunition Manufacturers' Institute (SAAMI), the U.S. firearms and ammunition industry's technical standards-setting organization, announced the acceptance of the new cartridge and chamber standard on January 15, 2023.

The .360 Buckhammer cartridge offered a flatter trajectory and better terminal performance over many contemporary straight-wall cartridges while remaining compliant in most applicable states.

.360 Buckhammer's parent case is the .30-30 Winchester, necked-up to use the same .358-caliber bullets as the .35 Remington and .35 Whelen.^[4]

.360 Buckhammer also addresses a rapidly growing market segment known as "straight-wall-cartridge-compliant" deer-hunting states. A growing number of states that previously restricted deer hunting to limited-range slug guns or muzzle-loading firearms are now allowing rifles chambered in straight-walled centerfire cartridges with a maximum case length of 1.8 in (46 mm).

• List of rifle cartridges
• 30-30 Winchester
• .350 Legend
• .35 Remington
• .35 Whelen
• .358 Winchester
• .375 Winchester
• .400 Legend
• .450 Bushmaster

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