Neck Turning .308Win

[Uncle Jack]

I'm new to this process. When turning the necks on .308 brass (Remington) what is the optimum neck wall thickness. My first efforts turned out .014. Is that within acceptable standards?

[Apache]

Actually, it depends on your chamber. Some custom chambers are cut for a tight neck chamber, in target applications you want a very close fit. Something in the order of .002 under chamber dimensions. In hunting conditions most people want a bit more clearance in case some grit or something ends up in the neck area of the chamber causing high pressure.

In a factory rig, your not gonna see much if any difference.....I DO clean up the necks on my brass even on a no-turn neck chamber though. Take just enough off to clean up the neck to make sure it's the same thickness all the way around.

[Fjold]

Actually, it depends on your chamber. Some custom chambers are cut for a tight neck chamber, in target applications you want a very close fit. Something in the order of .002 under chamber dimensions. In hunting conditions most people want a bit more clearance in case some grit or something ends up in the neck area of the chamber causing high pressure.

In a factory rig, your not gonna see much if any difference.....I DO clean up the necks on my brass even on a no-turn neck chamber though. Take just enough off to clean up the neck to make sure it's the same thickness all the way around.


+1, On a factory chambered gun just turn it enough to make the clean up the neck and make it even.