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Makers of Precision Gun Barrels and the E.R. Shaw Mk. VII Custom Bolt Action Rifle.
E.R. Shaw Custom Barrels

Caliber and Twist Rates

Use the chart below to select the caliber & twist rate for your E.R. 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.


ER Shaw Caliber and Twist Rates

Available Calibers


9

.17 Rem
.17 Fireball


12

.204 Ruger®
.20 VARTARG


8 | 9 | 12 | 14

.22 Rem. Bench Rest
.220 Swift
.221 Rem
.22-250
.22-250 Ack
.222 Rem
.222 Rem Mag
.223 Rem
.223 Ack                                 .223 Wylde
.224 Wby
.224 TTH
.225 Win                                 5.56 NATO


8 | 10 | 12

6mm BR Rem                         6mm BR Norma
6mm Rem Ack
6mm Rem
6mm-06
6mm/284
6mmx45
6mmx47                                       6mmx47 Lapua                       6mm Creedmoor
.240 Wby
.243 Win
.243 Ack

10

.250 Savage®
.250 Savage® Ack
.25-06 Rem
.25-06 Ack
.25-284
.257 Roberts
.257 Roberts Ack
.257 Wby


8 | 9

6.5x55 Swede
6.5/06
6.5/06 Ack
6.5 Creedmoor
6.5 Rem. Mag                           6.5x47 Lapua
6.5-284 Norma                         6.5-300 Wby
.260 Rem
.260 Ack
.264 Win. Mag
26 Nosler


10

.270 Win
.270 Wby


9.5

7mm Rem Mag
7mm Wby
7mm STW                               7mm Rem Ultra Mag
7mm-08 Rem
7mm-08 Ack
7mmx57 Mauser
7mmx57 Ack
.280 Rem
.280 Ack
.284 Win                                     28 Nosler


10 | 12

.300 Savage®
.300 Win Mag
.300 Wby Mag
.300 H&H Mag                           300 Rem Ultra Mag                        30 Nosler
.30-06
.30-06 Ack
.30-338
.308 Win
.308 Norma Mag


9.5

8mm Rem Mag
8mm-06
8mmx57 Mauser


10

.338 Federal
.338-06
.338-06 Ack
.338 Win. Mag                           338 Rem Ultra Mag                       33 Nosler
.340 Wby


14

.35 Rem
.35 Whelen
.35 Whelen Ack
.350 Rem. Mag
.358 Win
.358 Norma Mag


12

.375 Ruger®
.375 H&H Mag
.375x8mm Mag
.375-338 Mag                             375 Rem Ultra Mag


15

.416 Rem
.416 Taylor
.416 Ruger®


14 | 22

.450 Marlin
.45/70 Gov’t
.458 Win. Mag
.458 Lott
.458x2 American

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