CZ 550 actioned .416 Rigby: best barrel twist?

MAD DOG · January 18, 2000, 05:43 PM

I have decided to build a Rigby on the 550 action, and need to get a better barrel than the one provided with the action. Any recommendations for twist rate?

The barrel will run 22-24 inches, medium taper. It will not be ported.

George Stringer · January 18, 2000, 10:52 PM

Mad Dog, the recommended twist rate for the .416 is 1-14" for all bullets. If you want to check that and you know the length of the bullet you plan to use go to http://www.digiweb.com/dputzolu/VIIIB6.html and work Greenhill's formula. George

January 18, 2000, 05:43 PM	#1
MAD DOG Senior Member Join Date: October 13, 1998 Location: Arizona. Posts: 853	I have decided to build a Rigby on the 550 action, and need to get a better barrel than the one provided with the action. Any recommendations for twist rate? The barrel will run 22-24 inches, medium taper. It will not be ported.

January 18, 2000, 10:52 PM	#2
George Stringer Staff Alumnus Join Date: October 12, 1998 Location: Earlington KY Posts: 2,299	Mad Dog, the recommended twist rate for the .416 is 1-14" for all bullets. If you want to check that and you know the length of the bullet you plan to use go to http://www.digiweb.com/dputzolu/VIIIB6.html and work Greenhill's formula. George