Industry Standard Rifling Twist Rates

CartridgeStd Twist Rates *CartridgeStd Twist Rates *
.17 Remington 1:9 .30-30 Winchester 1:10,1:12
.22 Long Rifle 1:16 .300 Savage 1:12
.22 Hornet 1:16 **.308 Winchester 1:12
.218 Bee 1:16 .30-40 Krag 1:10
.219 Zipper 1:14 .30-06 Springfield 1:10
.222 Remington 1:14 .300 H&H Magnum 1:10
.223 Reminton 1:7,1:8,1:9,1:10,1:12 *** .308 Norma Magnum 1:10,1:12
.222 Reminton Magnum 1:12,1:14 .300 Winchester Magnum 1:10
.224 Weatherby Magnum 1:14 .300 Weatherby Magnum 1:10
.225 Winchester 1:14 .30-378 Weatherby Magnum 1:10
.22-250 Remington 1:12,1:14 .32 Winchester Special 1:16
.220 Swift 1:14 .32 Remington 1:14
.243 Winchester 1:9,1:10 .338 Winchester Magnum 1:10
.244 Remington 1:9,1:12 **** .340 Weatherby Magnum 1:10
6mm Remington 1:9,1:10 .33-378 Weatherby Magnum 1:10
.250-3000 Savage 1:10 .348 Winchester 1:12
.257 Roberts 1:10 .35 Remington 1:16
.257 Weatherby Magnum 1:10 .358 Winchester 1:12
6.5x55mm Swedish 1:8,1:9 .350 Remington Magnum 1:16
6.5 Remington Magnum 1:9 .358 Norma Magnum 1:12
.264 Winchester Magnum 1:9,1:10 .358 Shooting Times Alaskan 1:12
.270 Winchester 1:10 .375 H&H Magnum 1:12
.270 Weatherby Magnum 1:10 .378 Weatherby Magnum 1:12
7mm-08 Remington 1:9.25 .416 Remington Magnum 1:14
7x57mm Mauser 1:9,1:9.5,1:10 .416 Rigby 1:14
.284 Winchester 1:9.5,1:10 .416 Weatherby Magnum 1:14
.280 Remington 1:9.25,1:9.5 .44 Remington Magnum 1:38
7mm Remington Magnum 1:9,1:9.5,1:10 .444 Marlin 1:38
7mm Weatherby Magnum 1:10 .45-70 Govt 1:20
7mm Shooting Times Westerner 1:9,1:9.5 .458 Winchester Magnum1:14
.30 Carbine 1:20 .460 Weatherby Magnum 1:16

*       some companies have standardized on different twist rates than others
**     some modern rifles in this caliber have quicker (1:14) twist rates
***   twist rates of 1:10 and 1:12 are most common
**** later production Model 722 rifles had the faster 1:9 rate for stabilizing 100 grain spitzers