bushing size?

[LWolken]

Just curious what bushing size you guys use for your .243 ack? I had been using a .269 but recently decided to try my .268 that I use for 6mmbr. These are standard chambers not neck turn.

Lance

 

[fdshuster]

Lance: I try to keep it simple, and start with a bushing size that is .002" smaller than loaded round neck diameter, but be careful: not all bushings will produce the stamped ident diameter. I've found some to be + or -. When ordering bushings for a new chambering I'll usually go .001" higher and lower also to cover any slight differences in brass neck wall thicknesses, and for the future use of the .003" smaller as the brass ages/work hardens. Even at that, I have collected numerous bushings ($$$$) that are seldom, if ever used: they tend to multiply like rabbits.