Load data for .458 Win.Mag. + 300gr Barnes TTSX BT

222 suitable loads across 38 powder(s) for cartridge .458 Win.Mag. with 300gr Barnes TTSX BT bullet.

The most recommended powders for this combination are Shooters World Buffalo Rifle, Vihtavuori N130 and Lovex D060.

Based on C.I.P., the max. allowed case length is 2.500 in / 63.50 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.

Based on C.I.P., the max. allowed case length is 2.500 in / 63.50 mm, the max. cartridge length is 3.340 in / 84.84 mm, and the max. allowed pressure is 62,366 PSI / 4,300 bar.

Load Specifications

ImperialMetric

Bullet:.458 | 300gr | TTSX BT

Cartridge:.458 Win.Mag. load data

Case Length (L3):2.500" | 63.5 mm

Cartridge Length (COL/L6):•••

Seated Depth:0.435" | 11.0 mm

Case Capacity:95 gow | 6.16 cm³

Primer Size:Large Rifle Magnum (LRM)

Max. Pressure (C.I.P.):62,366 psi | 4,300 bar

Barrel Length:24.0" | 610 mm

Min. Twist Rate:Stabilizes in any common twist

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Community Loads for .458 Win.Mag. + 300gr Barnes TTSX BT

Real loads for this combination shared by our community. Charge weights are only fully visible with an active Pro licence.

Charge (gr)	C.O.L.	Barrel Length	Velocity (fps)	Pressure (psi)

70.0 gr	3.340"	20.0"	2388 fps	•••
71.0 gr	3.300"	24.0"	2527 fps	•••
73.0 gr	3.340"	20.0"	2490 fps	•••
•••	3.300"	24.0"	2664 fps	•••
•••	3.340"	20.0"	2559 fps	•••

•••	3.300"	24.0"	2612 fps	•••

•••	3.300"	24.0"	2659 fps	•••
•••	3.300"	24.0"	2720 fps	•••

•••	3.290"	25.6"	2513 fps	•••

Charge weights beyond the first rows and all pressure values are only visible with an active Pro licence.