Mfg Part Number: 43-A0840010


The bolt head can be easily removed from the Blaser R8 Bolt Housing within seconds to match any change in barrel made.  The type of bolt head is specific to the Caliber AND Right or Left Handed actions.  The only change when going from a Right Handed bolt head to a Left Handed one is the dirrection in which the casing is ejected.  There are certain families of calibers that use the same bolt head:


Standard (ST) Calibers


.22-250 


.243 Win


6XC


6.5x57


6.5x 65 RWS


.270 Win


7x64


.308 Win


.30-06


8x57 IS


8.5x63


9.3x57


9.3x62