Search Loads/Search Results

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.270 Weatherby Magnum (26-inch barrel)

Warning! Notes: Most of these loads were maximum or near maximum for the rifle used, and they should be approached with caution when tried in other rifles chambered for the .270 Weatherby Magnum cartridge. All loads used the Federal 215 Magnum primer. All 160-grain Noslers keyholed when fired through 1-in-12 twist barrel of the Weatherby rifle. A 1-in-10 twist is needed to stabilize this bullet. (Rifle Issue #8, March, 1970)

Be Alert: Publisher cannot be responsible for errors in published load data.

Wt.	Bullet	Powder Manufacturer	Powder	Charge	Velocity (FPS)
90	Sierra	Winchester	W-780BR	Subscribe	3,650
Remarks: 2-3" groups
90	Sierra	IMR	IMR-4350	Subscribe	3,990
Remarks:
90	Sierra	IMR	IMR-4064	Subscribe	3,853
Remarks: accurate through cold barrel; first two shots within one inch, third normally wide of group
100	Speer	IMR	IMR-4350	Subscribe	3,795
Remarks: 1 1/2-inch spread
100	Speer	Winchester	W-780BR	Subscribe	3,629
Remarks: least accurate of 6 loads tested, several 3-inch groups to its credit
100	Speer	Alliant	RL-21	Subscribe	3,830
Remarks:
100	Speer	IMR	IMR-4064	Subscribe	3,680
Remarks: 1 1/4" group
100	Speer	IMR	IMR-4831	Subscribe	3,625
Remarks: 2 1/2" group
110	Sierra	IMR	IMR-4350	Subscribe	3,663
Remarks: retains approximate accuracy of 69.0/4350/110 load with increased velocity
110	Sierra	IMR	IMR-4064	Subscribe	3,546
Remarks:
110	Sierra	Alliant	RL-21	Subscribe	3,350
Remarks: light load; gives reasonable accuracy
110	Sierra	Hodgdon	H-414	Subscribe	3,539
Remarks:
110	Sierra	Alliant	RL-21	Subscribe	3,665
Remarks:
130	Remington Bronze Point	IMR	IMR-4350	Subscribe	3,390
Remarks:
130	Remington Bronze Point	Winchester	W-780BR	Subscribe	3,225
Remarks: 2 1/2" groups
130	Remington Bronze Point	Winchester	W-780BR	Subscribe	3,270
Remarks: occasional 2" groups
130	Remington Bronze Point	IMR	IMR-4831	Subscribe	3,250
Remarks:
130	Remington Bronze Point	IMR	IMR-4831	Subscribe	3,350
Remarks: 5/8" groups
130	Remington Bronze Point	Alliant	RL-21	Subscribe	3,361
Remarks:
150	Hornady Spire Point	Hodgdon	H-870	Subscribe	3,115
Remarks:
150	Hornady Spire Point	IMR	IMR-4831	Subscribe	3,165
Remarks: 2" group
150	Hornady Spire Point	IMR	IMR-4831	Subscribe	3,231
Remarks: 2" accuracy
150	Hornady Spire Point	IMR	IMR-4350	Subscribe	3,215
Remarks: best long-range load for big game
150	Hornady Spire Point	Winchester	W-780BR	Subscribe	2,967
Remarks: 2 1/2"-3" groups with most loadings of 780BR
160	Nosler	IMR	IMR-4350	Subscribe	3,095
Remarks: see notes
160	Nosler	IMR	IMR-4064	Subscribe	2,638
Remarks: see notes
160	Nosler	Hodgdon	H-570	Subscribe	3,164
Remarks: see notes
160	Nosler	Hodgdon	H-870	Subscribe	3,072
Remarks: see notes
160	Nosler	Hodgdon	H-870	Subscribe	3,129
Remarks: see notes
160	Nosler	IMR	IMR-4831	Subscribe	3,164
Remarks: see notes
170	Speer	Hodgdon	H-570	Subscribe	2,575
Remarks: obvious yaw on second chronograph screen
170	Speer	Winchester	W-780BR	Subscribe	2,965
Remarks: poor shooter; extremely wide groups