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 Bolt Action Rifles
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 Barrel Twist Rates
 Barrel Break-In
 Rifle Scopes
 Rifle Scope Mounts
 Rifle Scope Mounting
 Rifle Scope Sight-In
 Hunting Rifle Sight-In
 Precision Targets
 Rifle Shooting
 Precision Bold Targets.
 Rimfire Ballistics
 Centerfire Ballistics
 Reloading
 Equipment
 How To
 Black Powder
 Recoil
 Reloading Accuracy
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270 Winchester History:
Centerfire Rifle Cartridges
Written by: Kim Lockhart, Copyright.

270 Winchester:
The 270 Winchester is based on the more popular 30-06 cartridge case necked down to .277" caliber. Winchester began producing the 270 Winchester in 1923. Although the 270 Winchester was in production in 1923 it was not officially announced until the introduction of their model 54 rifle chambered in their 270 Winchester cartridge in 1925, later it would be chambered in their famous featherweight model 70 bolt action rifle. The 270 Winchester is a great dual purpose cartridge it can be used for varmints sending a 100 gr. bullet out the muzzle at a sizzling 3,500 feet per second or it can be used as a big game cartridge sending 130 grain bullets out the muzzle at speeds of 3,100 feet per second with sufficient power out to the 400 yard mark for deer sized game plus using 150 grain bullets at 2900 feet per second it will flatten an elk out to about 250 yards.

 If you were looking to buy a new rifle just to hunt in North America and you were going to hunt white-tailed deer for the most part the 270 Winchester offers plenty of range and energy for that. If you were going to hunt elk and moose some of the time, well the 270 Winchester offers enough bullet weight and energy for that also.

 While much has been written about the 270 Winchester cartridge it truly is a great North American, big game cartridge. There are plenty of excellent bullet choices for handloaders and as of lately more factory ammunition choices are available in a variety of bullet weights as well. The 270 Winchester with the power it offers down range will recoil somewhat to the shooters shoulder with heavier bullets in the 150 grain range but is still tolerable to shoot. If the recoil bothers you to much just find a quality gunsmith in your area and have a recoil pad installed on your rifle or shoot reduced recoil ammunition.


270 Winchester Specifications:
Rifle:
Barrel Length - 24".
Bore Twist Rate - 1 in 10".
Bore Groove Diameter - .277".
Cartridge:
Bullet Diameter - .277".
Primer Size - Large Rifle.
Case Neck Diameter - .308".
Case Shoulder Diameter - .441".
Case Base Diameter - .470".
Case Rim Diameter - .473".
Maximum Case Length - 2.540".
Trimmed Case Length - 2.530".
Maximum Overall Length - 3.340".
Ammunition:
270 Winchester
Cartridge
Manufacturer
Bullet
Weight
Grains
Bullet
Ballistic
Coefficient
Bullet
Muzzle
Velocity
Fps.
Bullet
Muzzle
Energy
Ft. lbs.
8.5 lb. Rifle,
Recoil
Energy
Ft. lbs.
Remington 100 .252 3,320 2,447 13.52
Cor-Bon 110 .323 3,450 2,907 15.98
Remington 115 .295 2,710 1,875 12.95
Norma 120 .314 3,250 2,814 16.75
Hornady 130 .460 3,200 2,956 18.34
Hornady 140 .495 3,090 2,968 19.48
Federal 145 .410 2,200 1,558 11.66
Winchester 150 .503 2,950 2,898 20.29

270 Winchester Hunting Applications:
 This is a down range trajectory chart for the 270 Winchester cartridge with the scope mounted 1.5 inches above the bore center line plus if you were using this load, its effective hunting bullet energy range with well placed shots on;
Varmint / Predator: Such As, Bobcat, Cougar, Coyote.
Deer Size Game: Such As, Antelope, Blacktail Deer, Hogs, Javelina, Mule Deer, Whitetail Deer, Small Black Bear.
Elk Size Game: Such As, Caribou, Large Black Bear, Sheep, Goats, Muskox, Elk.
Moose Size Game: Such As, Brown Bear, Grizzly Bear, Polar Bear, Buffalo, Bison, Moose.
Bullet diameter .277".
Bullet weight 140 grains.
Bullet ballistic coefficient .495.
Bullet muzzle velocity 3,090 feet per second.
Bullet muzzle energy 2,968 foot pounds.
Range 100 Yds. 200 Yds. 300 Yds. 400 Yds. 500 Yds.
Bullet Trajectory + 2.4" + 2.5" - 2.2" - 12.3" - 28.8"
Bullet Energy 2,603 2,276 1,983 1,721 1,487
Varmint / Predaor + + + + +
Deer Size Game + + + + +
Elk Size Game + + + - -
Moose Size Game + + - - -
Directory:
Rifles
Rifle Ammunition
Rifle Dies
Rifle Brass
Rifle Bullets
270 Winchester - Reloading - Hunting & Ballistics.
.17 HM2, .17 HMR, .17 WSM, 5mm Rem. Mag., .22 BB Cap, .22 CB Cap, .22 Short, .22 Long, .22 LR, .22 WRF, .22 WMR.
17 Rem., 204 Ruger, 22 Hornet, 222 Rem., 223 Rem., 22-250 Rem., 220 Swift, 223 WSSM, 243 Win., 6mm Rem., 243 WSSM,
240 Wby. Mag., 250 Sav., 257 Roberts, 25 WSSM, 25-06 Rem., 257 Wby. Mag., 6.5 x 55mm Swedish Mauser, 260 Rem.,
6.5mm Rem. Mag., 264 Win. Mag., 6.8 Rem., 270 Win., 270 WSM, 270 Wby. Mag., 280 Rem., 7mm Rem. Mag., 7mm WSM,
30-30 Win., 308 Win., 30-06 Sprg., 300 Win. Mag., 300 WSM, 300 Wby. Mag., 325 WSM, 338 Win. Mag., 340 Wby. Mag.,
357 Mag., 44 Rem. Mag., 444 Marlin, 45-70 Government.