Caliber and Twist Rates
![]() |
Use the chart below to select the caliber & twist rate for your Shaw custom rifle barrel. Twist rates must correspond to the calibers listed. Please refer to the icons in the caliber list to determine which twist rate can be used in your custom barrel. The number in the box corresponds to the number of inches per complete right-hand twist. For example: 14 would mean that your barrel caliber requires a twist rate of 1 in 14 inches. |
Shaw Caliber and Twist Rates
-ALL Available Cartridges for Bolt-Action Rifle Barrels.
-Please note that not all cartridges are available or advisable for use in all actions.
-All reamer dimensions are to SAAMI specifications unless a wildcat or otherwise noted.
-All Ackley cartridge shoulder angles are 40 degree.
-280 Ackley Improved is SAAMI spec.
-(No Fit) next to a cartridge name means that fitting service is unavailable for that specific cartridge.
-We do NOT cut custom throat dimensions.
9 17 REM FIREBALL 12 20 VARTARG (NO FIT) 6.5 | 7 | 8 | 9 | 12 | 14 221 REM FIREBALL 7 | 8 | 9 | 10 6 x 45mm 10 250 SAVAGE |
8 | 9 6.5 GRENDEL 8.5 | 10 6.8mm REM SPC II 8 | 9.5 7mm-08 REMINGTON 8 | 10 | 12 300 AAC BLACKOUT 10 8mm MAUSER (8x57) |
3 8.6 BLACKOUT (NEW!) 10 338 FEDERAL 16 350 LEGEND 14 35 REMINGTON 12 9.3 x 62 12 375-338 MAG (NO FIT) 16 400 LEGEND (NEW!) 15 416 REM MAG 24 450 BUSHMASTER 14 | 22 45/70 GOVT |