Neck thickness 6mm creed alpha brass?

[Matt_3479]

I have a set of Redding type s 6mm creedmoor dies and have 6mm creed alpha srp brass on the way. Wondering the thickness of the neck if anyone is shooting it in order to be able to get the bushing I need?

 

[BR7.62]

I have NOT loaded yet for a new build in 6cm. But.. . I seated one berger 105 in new alpha brass and bought 269 270 and 271 bushings for my dies.
I can't remember which one I thought would be a thou under.
With calipers it measures 15-16 thou thick.
If that helps.. .

 

[Matt_3479]

Thank you, i was just hoping to order 1 or 2 before everything gets underway.

 

[Matt_3479]

I have NOT loaded yet for a new build in 6cm. But.. . I seated one berger 105 in new alpha brass and bought 269 270 and 271 bushings for my dies.
I can't remember which one I thought would be a thou under.
With calipers it measures 15-16 thou thick.
If that helps.. .

My brass showed up way way early then expected, and it looks like neck is 15 though pretty steady. 14.5-15 though so I figured I need to order 271 and or 272 in order to be .001-.002 thou smaller. .243+.0295-.030=.273 thou

 

[4ester]

I measured my alpha 6 Creed at .0135-.014 ish using calipers. Need a tubing Mic I believe to get a more accurate measurement. I ordered a .268 Bushing but have yet to load any. Might have to order a new bushing after loading the first rounds and measuring.

 

[Matt_3479]

I remeasured all the brass and got the smallest at .0135 and the largest at .015. Average at .014.

Which should be .271 so a .269 bushing but I got my dies today for Christmas and only had 87gr vmax kicking around for a 243 I use to have and through a few in to grab a measurement and it had me second guessing what to order now as they came out at .2685-.269 meaning I need .268-.267 bushings