Re: Neck sizing question...
New to reloading here...got my equipment and just digging in for the first time. I have an off the shelf A-bolt stainless stalker in 270 win. I am not turning necks yet - i am playing with it with a few cases that I won't use, but I think I need to get the basics down before I throw more variables (and more room for error) into the mix.
I have a 150 or so Nosler once fired cases (from factory ammo) and also bought 50 new brass so I can measure and compare if needed.
On the Nosler reloading data they show a loaded cartridge having a neck diameter of .308, which allows for .0155 neck thickness.
Measuring loaded factory Nosler ammo has diameter or .305 which would allow for neck thickness of .014...Most of my cases have a neck thickness of between .014 to .015 (both once fired and new a Nosler brass).
Based on that, I ordered .303 and .304, as well as .305, .306 and .307 to do a two step and have more flexibility on exact sizing. I arrived at that by taking .305 - .277 to get to .028, which has neck thickness of .014, and subtracted .001 and .002 to get .303 and .304.
Anything wrong with my approach?