6.8 Western Load Data & Reloading Guide

Rifle

Also known as: 6.8×51mm Western, 6.8mm Western

About 6.8 Western

The 6.8 Western is a modern rifle cartridge that was introduced in 2021 by Winchester, designed to address the growing demand for high-performance long-range cartridges. It was developed in collaboration with Browning, building upon the case of the .270 Winchester Short Magnum (WSM) but featuring a shorter design to accommodate longer, high ballistic coefficient bullets. The casing length has been shortened to allow seating of longer bullets without sacrificing powder capacity, enhancing its efficiency in delivering long-range accuracy.

Technically, the 6.8 Western uses a case diameter similar to that of the .270 WSM, but the case length has been reduced to approximately 2.02 inches. This allows for bullets weighing between 165 and 175 grains to be loaded with precision. These bullets possess higher sectional densities and improved ballistic coefficients compared to traditional hunting rounds in this caliber range. The resulting ballistic performance is noteworthy for its flat trajectory and retained energy, making it a strong contender in long-range hunting and shooting scenarios.

Ballistically, the 6.8 Western excels by providing enhanced downrange energy and manageable recoil. Its impressive long-range capabilities and retained energy make it particularly effective for hunters targeting medium to large game such as deer, elk, and even moose across varied terrains. In terms of muzzle velocity, it typically achieves around 2800-2950 feet per second, depending on bullet weight and load specifications, offering a balance between striking power and trajectory predictability.

For reloaders, the 6.8 Western offers several advantages, including versatility in bullet selection and powder adaptability. Its design is well-suited to a variety of modern powders, allowing reloaders to fine-tune loads for their specific needs, whether optimizing for accuracy or achieving a specific velocity. Additionally, the case’s efficient design, with a relatively short but wide profile, makes it an attractive option for those interested in maximizing performance within modern, short-action rifles.

Technical Drawing

6.8 Western cartridge dimensions, C.I.P.L1 = 40.221 mm, L2 = 44.285 mm, L3 = 51.308 mm, L6 = 75.057 mmL1 = 40.22 mmL2 = 44.28 mmL3 = 51.31 mmL6 = 75.06 mm70.2°

Based on SAAMI, the max. allowed case length is 2.020 in / 51.31 mm, the max. cartridge length is 2.955 in / 75.06 mm, and the max. allowed pressure is 65,000 PSI / 4,482 bar.

Technical Specifications

Maximum Pressure:65000 PSI / 4482 bar
Case Volume:75.5 Grains of Water
Primer Size:Large Rifle
Safety Standard:SAAMI (Datasheet)
Bore Area:38.51 mm²
Barrel Diameter:0.278" / 7.1 mm
L1:1.584" / 40.22 mm
L2:1.744" / 44.28 mm
L3:2.020" / 51.31 mm
L6:2.955" / 75.06 mm

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Use our professional ballistics calculator to develop safe and accurate load recipes for 6.8 Western.

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Brass Case Capacities

The following table shows the case capacity (Grains of Water) for brass in cartridge 6.8 Western where we have data (number of datapoints in brackets).

Hornady (2)75.2
Winchester (2)74.4

Standard Load Data — 6.8 Western

Select your desired cartridge and bullet weight below to access the corresponding load table. From there, you can choose any listed load recipe and transfer it directly into the ballistics calculator for further refinement, optimization, and precision tuning.

All
100 gr
107 gr
115 gr
120 gr
130 gr
132 gr
133 gr
140 gr
145 gr
150 gr
155 gr
160 gr
165 gr
170 gr
180 gr
Barnes logo

.277 | 155gr | Barnes LRX BT

BC G1: 0.54BC G7: 0.254
90 powders529 loads
Nosler logo

.277 | 170gr | Nosler Ballistic Tip Hunting

BC G1: 0.56
78 powders500 loads
Berger logo

.277 | 140gr | Berger Classic Hybrid Hunter

BC G1: 0.528BC G7: 0.271
90 powders534 loads
Nosler logo

.277 | 165gr | Nosler AccuBond Long Range

BC G1: 0.62BC G7: 0.315
79 powders498 loads
Hornady logo

.277 | 150gr | Hornady InterLock

BC G1: 0.462
79 powders498 loads
Hornady logo

.277 | 120gr | Hornady SST

BC G1: 0.4
108 powders633 loads
Barnes logo

.277 | 120gr | Barnes X BT

BC G1: 0.416
101 powders589 loads
Sierra logo

.277 | 140gr | Sierra GameKing

BC G1: 0.457BC G7: 0.223
90 powders532 loads
Hornady logo

.277 | 145gr | Hornady ELD-X

BC G1: 0.536BC G7: 0.27
88 powders520 loads
Berger logo

.277 | 170gr | Berger Elite Hunter

BC G1: 0.662BC G7: 0.339
78 powders501 loads
Swift logo

.277 | 150gr | Swift A-Frame

BC G1: 0.444
79 powders497 loads
Nosler logo

.277 | 150gr | Nosler Ballistic Silver Tip

BC G1: 0.496
79 powders488 loads
Barnes logo

.277 | 100gr | Barnes Solid

BC G1: 0.363
104 powders650 loads
Peregrine logo

.277 | 107gr | Peregrine Glider GRM

BC G1: 0.455
103 powders647 loads
Sierra logo

.277 | 115gr | Sierra MatchKing

BC G1: 0.324BC G7: 0.155
109 powders638 loads
Nosler logo

.277 | 130gr | Nosler Solid Base

BC G1: 0.42
100 powders609 loads
Rhino Bullets logo

.277 | 130gr | Rhino Penetrator

BC G1: 0.472
99 powders599 loads
Sologne logo

.270 | 132gr | Sologne GPA

95 powders582 loads
Styria Arms | AERO logo

.277 | 115gr | AERO SB | HSD 2.0 ,- smax:15.40

BC G1: 0.334
105 powders578 loads
Remington logo

.277 | 130gr | Remington BronzePoint

BC G1: 0.372
93 powders535 loads
Barnes logo

.277 | 180gr | Barnes RNSP

BC G1: 0.365
72 powders446 loads
Apex Outdoors logo

.277 | 133gr | Apex Outdoors Afterburner

BC G7: 0.287
Rhino Bullets logo

.277 | 160gr | Rhino Solid Shank

BC G1: 0.469
Winchester logo

.277 | 140gr | Winchester FailSafe

BC G1: 0.322

Community Loads — 6.8 Western

Here are some popular loads for 6.8 Western:

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Filter:
BulletPowderBarrel (in)Charge (gr)Case Volume (GoW)OAL (in)Max. Pressure (psi)Muzzle Velocity (fps)
.277 | 140gr | Berger Classic Hybrid Hunter (140gr)
Ramsho
Magnum
24.0••.•75.12.9154,549 (84%)3022
.277 | 140gr | Berger Classic Hybrid Hunter (140gr)
Winche
StaBALL HD
24.0••.•75.52.9145,585 (70%)2999
.277 | 140gr | Berger Classic Hybrid Hunter (140gr)
Ramsho
Magnum
24.0••.•75.12.9145,310 (70%)2858
.277 | 140gr | Berger Classic Hybrid Hunter (140gr)
Ramsho
Magnum
24.0••.•75.52.9144,715 (69%)2848
.277 | 140gr | Berger Classic Hybrid Hunter (140gr)
Hodgdo
Superformance
24.062.775.52.9153,258 (82%)3002
.277 | 140gr | Berger Classic Hybrid Hunter (140gr)
Ramsho
Grand
24.064.275.52.9148,457 (75%)2949
.277 | 140gr | Berger Classic Hybrid Hunter (140gr)
Ramsho
Grand
24.065.075.52.9150,575 (78%)2989
.277 | 145gr | Hornady ELD-X (145gr)
Ramsho
Grand
26.0••.•75.52.9057,126 (88%)3104
.277 | 145gr | Hornady ELD-X (145gr)
Hodgdo
H4831 SC
26.0••.•75.52.9057,831 (89%)3028
.277 | 150gr | Berger VLD Hunting (150gr)
Hodgdo
Retumbo
24.0••.•74.02.9641,829 (64%)2759
.277 | 150gr | Nosler AccuBond Long Range (150gr)
Hodgdo
H1000
24.0••.•75.52.9647,123 (72%)2769
.277 | 150gr | Sierra SBT GameKing (150gr)
Ramsho
Magnum
24.0••.•76.42.9157,783 (89%)2966
M.277 | 155gr | Barnes LRX (155gr)
Ramsho
Grand
24.0••.•73.82.8864,832 (100%)3054
.277 | 155gr | Barnes LRX (155gr)
Hodgdo
Superformance
24.0••.•74.02.9658,291 (90%)2930
.277 | 155gr | Barnes LRX (155gr)
Hodgdo
H4831 SC
24.0••.•74.02.9658,030 (89%)2884
.277 | 155gr | Barnes LRX (155gr)
Hodgdo
H4831
22.0••.•74.02.9654,810 (84%)2776
M.277 | 155gr | Barnes LRX BT (155gr)
Ramsho
Grand
24.0••.•75.52.9663,295 (97%)3045
.277 | 155gr | Barnes LRX BT (155gr)
Vihtav
N560
24.0••.•75.52.8757,551 (89%)2959
.277 | 155gr | Barnes LRX BT (155gr)
Vihtav
N560
24.0••.•75.52.8857,130 (88%)2953
.277 | 155gr | Barnes LRX BT (155gr)
Vihtav
N560
24.0••.•75.52.8956,840 (87%)2949
.277 | 155gr | Barnes LRX BT (155gr)
Vihtav
N560
24.0••.•75.52.9056,710 (87%)2946
.277 | 155gr | Barnes LRX BT (155gr)
Vihtav
N560
24.0••.•75.52.9156,246 (87%)2943
.277 | 155gr | Barnes LRX BT (155gr)
Ramsho
Grand
24.0••.•75.52.9656,275 (87%)2943
.277 | 155gr | Barnes LRX BT (155gr)
Vihtav
N560
24.0••.•75.52.9655,071 (85%)2927

Frequently Asked Questions

The maximum pressure for 6.8 Western is 65,000 psi | 4,482 bar.

6.8 Western typically uses a Large Rifle primer.

The case capacity of 6.8 Western is approximately 75.5 grains of water (H₂O).