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Neck sizing bushing

It depends on your brass and if you neck turn it. All you do is take the neck thickness and multiply it by 2 then add the bullet diameter then subtract say .002(depending on how much tension you want. Since you're shooting 2 different kinds of brass you may need to turn your necks.
 
You'll end up at some point wanting bushings larger and smaller than the nominal. As the cycle count increases, so will the neck thickness. If you turn necks someday, you may overshoot and go a tic too thin. I'd also buy bushings one size up and down fom what you think you need. The day you do need them, you'll need them right then, not the five days later it will take to get them shipped in.

Hurry up, would you? PDs in Pueblo this Saturday!
 
You'll end up at some point wanting bushings larger and smaller than the nominal. As the cycle count increases, so will the neck thickness. If you turn necks someday, you may overshoot and go a tic too thin. I'd also buy bushings one size up and down fom what you think you need. The day you do need them, you'll need them right then, not the five days later it will take to get them shipped in.

Hurry up, would you? PDs in Pueblo this Saturday!

Thanks Tim!!
Id be there but im out of town for work this weekend