Same here. Gold box, 267 in a 269.phil said:Hal,
You need to get some brass and turn it until you get the necks as cleaned up as you like.
Measure the neck and go for it...
I`d imagine at .011 you would have 100% clean up .011+.011+.243=.265 so .267 will work.
I`m still using my gold box brass so this is just a guess as to how much clean up you`ll have at .011,my gold box cleans up 100% at .012 so my necks are .267 with a .269 chamber.