.270 Win. Load Data & Reloading Guide

Rifle

Also known as: .270 Winchester, 6.8×51mm, .270 WSM

About .270 Win.

The .270 Winchester, introduced in 1925, quickly gained a reputation for its impressive performance and versatility in the field. Developed from the .30-03, its creators aimed to provide hunters with a flatter shooting cartridge capable of taking down a wide range of game with ease. This caliber bridges the gap between lighter varmint cartridges and heavier large game rounds, making it a favored choice among hunters and sports shooters alike.

In technical terms, the .270 Winchester uses a 7mm bullet, approximately 0.277 inches in diameter, with a case length of 2.54 inches. It is known for its high velocity, typically around 3000 feet per second with a 130 grain bullet, contributing to its flat trajectory and reduced wind drift. Bullet weights for the .270 Winchester commonly range between 90 and 150 grains, providing flexibility based on specific shooting requirements. These characteristics make the .270 Win. particularly effective for long-range shooting and hunting medium to large game species, such as deer, elk, and antelope.

For reloaders, the .270 Winchester offers several advantages. Its widespread popularity ensures a consistent supply of high-quality reloading components, including a wide variety of bullet designs and weights. The shoulder angle of the .270 case aids in reliable feeding and extraction, which is critical for ensuring consistent accuracy and performance. Additionally, the .270's case capacity allows for a variety of powder choices, enabling reloaders to fine-tune loads for optimal performance based on specific hunting or competitive shooting scenarios. As a versatile and reliably performing caliber, the .270 Winchester continues to be a staple among both new and seasoned reloaders who demand precision and adaptability.

Technical Drawing

.270 Win. technical drawing and load data

Technical Specifications

Maximum Pressure:62366 PSI / 4300 bar
Case Volume:67 Grains of Water
Primer Size:Large Rifle (LR)
Safety Standard:C.I.P.
Bore Area:38.52 mm²
Barrel Diameter:0.277" / 7.0 mm
L3:2.54" / 64.5 mm
L6:3.34" / 84.8 mm

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Brass Case Capacities

The following table shows the case capacity (Grains of Water) for brass in cartridge .270 Win. where we have data (number of datapoints in brackets).

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Federal (1)67.0
Hornady (6)66.7
Lake City (1)••.•
PMP (1)••.•
Winchester (19)66.0

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Standard Load Data — .270 Win.

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
120 gr
129 gr
130 gr
140 gr
145 gr
150 gr
160 gr
170 gr
Hornady logo

.277 | 145gr | Hornady ELD-X

BC G1: 0.536BC G7: 0.27
101 powders589 loads
Hornady logo

.277 | 150gr | Hornady SST

BC G1: 0.525
98 powders545 loads
Hornady logo

.277 | 130gr | Hornady SST

BC G1: 0.46
102 powders564 loads
Nosler logo

.277 | 160gr | Nosler Partition

BC G1: 0.434
93 powders562 loads
Nosler logo

.277 | 130gr | Nosler Partition

BC G1: 0.416
105 powders583 loads
Sierra logo

.277 | 130gr | Sierra GameKing

BC G1: 0.436BC G7: 0.209
102 powders587 loads
Barnes logo

.277 | 130gr | Barnes MRX BT

BC G1: 0.38
99 powders569 loads
Nosler logo

.277 | 150gr | Nosler AccuBond

BC G1: 0.5
98 powders545 loads
Hornady logo

.277 | 150gr | Hornady InterLock

BC G1: 0.462
90 powders561 loads
Hornady logo

.277 | 140gr | Hornady SST

BC G1: 0.495
104 powders604 loads
SAKO logo

.277 | 120gr | SAKO Blade

BC G1: 0.348
101 powders596 loads
Barnes logo

.277 | 150gr | Barnes TSX FB

BC G1: 0.386
101 powders592 loads
Hornady logo

.277 | 120gr | Hornady SST

BC G1: 0.4
97 powders581 loads
Nosler logo

.277 | 150gr | Nosler Partition

BC G1: 0.465
95 powders572 loads
RWS logo

.277 | 130gr | RWS H-Mantel

BC G1: 0.272
102 powders568 loads
Berger logo

.277 | 140gr | Berger Classic Hybrid Hunter

BC G1: 0.528BC G7: 0.271
100 powders555 loads
Barnes logo

.277 | 130gr | Barnes Solid

BC G1: 0.44
97 powders547 loads
Barnes logo

.277 | 130gr | Barnes TTSX FB

BC G1: 0.392
101 powders612 loads
Nosler logo

.277 | 130gr | Nosler AccuBond

BC G1: 0.435
101 powders565 loads
Sierra logo

.277 | 130gr | Sierra Pro-Hunter

BC G1: 0.37
102 powders563 loads
Nosler logo

.277 | 140gr | Nosler Partition

BC G1: 0.432
99 powders554 loads
Berger logo

.277 | 170gr | Berger Elite Hunter

BC G1: 0.662BC G7: 0.339
90 powders552 loads
Norma logo

.277 | 140gr | Norma Tipstrike

BC G1: 0.48
101 powders593 loads
Reichenberg logo

.277 | 129gr | Reichenberg Spezial Jagd

BC G1: 0.237
101 powders576 loads

Community Loads — .270 Win.

Here are some popular loads for .270 Win.:

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Filter:
BulletPowderBarrel (in)Charge (gr)Case Volume (GoW)OAL (in)Max. Pressure (psi)Muzzle Velocity (fps)
.277 | 100gr | Nosler AccuBond (100gr)
Allian
Reloder-15
24.054.067.03.3455,956 (90%)3346
.277 | 110gr | Barnes TSX BT (110gr)
Reload
RS 60
24.4••.•67.03.3451,401 (82%)3268
.277 | 110gr | Barnes TSX BT (110gr)
Reload
RS 60
24.455.667.03.3449,153 (79%)3225
.277 | 110gr | Barnes TSX BT (110gr)
Reload
RS 60
24.456.067.03.3450,473 (81%)3248
M.277 | 110gr | Barnes TTSX BT (110gr)
Reload
RS 60
24.4••.•67.03.3457,348 (92%)3356
.277 | 110gr | Barnes TTSX BT (110gr)
Reload
RS 60
24.4••.•67.03.3452,431 (84%)3274
.277 | 110gr | Barnes TTSX BT (110gr)
Reload
RS 60
24.4••.•67.03.3448,022 (77%)3192
.277 | 110gr | Barnes TTSX FB (110gr)
Reload
RS 60
24.4••.•67.03.3451,692 (83%)3264
.277 | 120gr | Hornady SST (120gr)
Vihtav
Vihtavuori N140
24.0••.•67.03.2544,425 (71%)2808
M.277 | 122gr | Hasler ARIETE (122gr)
Reload
RS 60
36.0••.•67.03.3456,913 (91%)3448
M.277 | 122gr | Hasler ARIETE (122gr)
Reload
RS 60
22.0••.•67.03.3460,466 (97%)3176
M.277 | 122gr | Hasler ARIETE (122gr)
Reload
RS 60
22.0••.•67.03.3458,668 (94%)3153
M.277 | 122gr | Hasler ARIETE (122gr)
Reload
RS 60
22.0••.•67.03.3456,913 (91%)3123
M.277 | 129gr | Barnes LRX BT (129gr)
Reload
RS 60
24.0••.•67.03.3056,391 (90%)3094
M.277 | 129gr | Barnes LRX BT (129gr)
Vihtav
N550
22.4••.•67.03.3059,973 (96%)3015
M.277 | 129gr | Barnes LRX BT (129gr)
Vihtav
N550
22.4••.•67.03.3458,624 (94%)2999
.277 | 129gr | Barnes LRX BT (129gr)
Vihtav
N160
23.0••.•72.03.3854,897 (88%)2979
.277 | 129gr | Barnes LRX BT (129gr)
Vihtav
N550
22.4••.•67.03.3053,142 (85%)2913
.277 | 129gr | Barnes LRX BT (129gr)
Vihtav
N160
23.0••.•72.03.3849,066 (79%)2881
M.277 | 130gr Hornady CX (130gr)
VECTAN
Tu 7000
22.4••.•67.03.3456,971 (91%)2861
.277 | 130gr Hornady CX (130gr)
VECTAN
Tu 7000
22.4••.•67.03.3455,245 (89%)2835
.277 | 130gr Hornady CX (130gr)
Ramsho
Hunter
23.0••.•67.03.3444,947 (72%)2808
.277 | 130gr Hornady CX (130gr)
VECTAN
Tu 7000
22.4••.•67.03.3453,563 (86%)2808
M.277 | 130gr | Barnes TSX BT (130gr)
Ramsho
Big Game
24.0••.•67.03.3461,321 (98%)3074

Frequently Asked Questions

The maximum pressure for .270 Win. is 62,366 psi | 4,300 bar.

.270 Win. typically uses a Large Rifle (LR) primer.

The case capacity of .270 Win. is approximately 67 grains of water (H₂O).