6dasher freebore

[6-dasher]

What is the longest freebore that you have used for a 105 hybrid. I’ve used 0.073, 0.104, and 0.130, but I’m thinking about going longer.

 

[comagutsa]

i use 150FB

 

[BCBRAD]

135 for 105 class bullets

 

[tclaunch]

.160" is a good place to be. Remember they can shoot best with a significant jump. The increase in freebore allows seating the bullet in the sized portion of the neck. I throat all my chambers where the end of the bearing surface is about 2/3 the way in the neck. Sometimes 1/2 way.

 

[dogdude]

.155, Mark King's std f/b