• Sassen Engineering Ltd
  • Britain's Premier Gun Barrel Manufacturers
  • International
    Service
    other languages
  • International Service

Calibre and twists

Button Rifle Calibre and Twist.

These are the current calibre and twist rates that we produce. If there is any other calibre you require please don’t hesitate to ask as further tooling can always be purchased.

Calibre Twist
0.17 9
0.2 10
.224/5.56 7,8,9,10,12,14
243/6  
.264/6.5 8,8.5
0.27 10
.284/7 8.5
.308/7.62 7,9,10,11,12,13
0.338 9.3,10,11
0.5  

Cut Rifle Calibre and Twist

Current we produce the following calibres

Calibre

.224/5.56

243/6

.264/6.5

.284/7

.308/7.62

0.338

.375

.416

0.577