The Mk. VII Rifle - Caliber List

If you don’t find the caliber you want in this list, just ask us at Shaw Precision Guns.

Use the chart below to select the caliber & twist rate for your E.R. Shaw custom Mk. VII Rifle.

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 Mk. VII Rifle. The number in the box corresponds to the number of inches per complete right-hand twist. For example: 1-14 would mean that your Mk. VII Rifle caliber requires a twist rate of 1 in 14 inches.

** Calibers offered as single shot rifle only.

1-9 .17 REM .17 Fireball** 1-12 .204 Ruger® .20 VARTARG** 1-8 | 1-9 | 1-12 | 1-14 .221 REM** .222 REM** .222 REM MAG .223 REM .223 ACK .22-250 .22-250 ACK .220 Swift** .224 TTH 1-8 | 1-10 | 1-12 6mm REM 6mm ACK 6mm/284 6mmX45 6mmX47 .240 WBY .243 ACK .243 WIN 1-10 .250 Savage® .250 Sav ACK .257 Roberts .257 Roberts ACK .25-06 .25-06 ACK .257 WBY

1-8 | 1-9 6.5X55 6.5/284 6.5/06 6.5/06 ACK 6.5/Creedmoor .260 REM .260 REM ACK .264 WIN MAG 1-10 .270 WIN .270 WBY 1-9.5 7mmX57 7mmX57 ACK 7mm/08 7mm/08 ACK 7mm REM MAG 7mm WBY 7mm STW .280 REM .280 REM ACK .284 WIN 1-10 | 1-12 .300 Savage® .308 WIN 30.06 30.06 ACK .30-338 .300 WIN MAG .300 WBY MAG .300 H&H .308 Norma MAG

1-9.5 8mm REM MAG 8mmX57 8mm/06 1-10 .338-06 .338-06 ACK .338 Federal .338 WIN MAG .340 WBY MAG 1-14 .358 WIN .35-Whelen .35-Whelen ACK .358 Norma 1-12 .375-338 MAG .375 Ruger® .375 H&H 1-15 **With varmint contour only .416 REM .416 Taylor .416 Ruger® 1-14 **With varmint contour only .458X2 American .458 WIN .458 Lott

Shaw Precision Guns
E. R. Shaw Incorporated
5312 Thoms Run Road
Bridgeville, PA 15017
Phone: 412.221.3636
Fax: 412.221.4303