Question about the Dasher

[PHammer]

I am new to loading a Dasher and was wondering if it is wise to uniform the flash hole as with the 6BR (Sinclair Flash hole uniformer). Can any of you tell me about this, I have 90 fire fomed Lapua cases to get started with. Thank You in advance !

 

[Phil]

Be CAREFUL with the primer pocket holes on 6BR brass, they measure .058-.059 NOT the .062-.063 that most reamers are set up for.

You need to get one specifically for the 6BR case......

 

[tclaunch]

Should not hurt a thing. I do this step my self, but no other work to the primer pocket.