Neck thickness on lapua 260 rem brass???

[djtjr]

Subject says it all need to get a bushing and I forgot to mic my necks before I left my cabin. Anyone know the neck thickness on their lapua 260 brass not 308 necked down or 243 necked up just the 260 from the factory?
Thanks
Don

 

[djtjr]

Guys for clarity neck wall thickness ie .0125 etc