Managing brass with different neck sizes

[targaflorio]

I started neck sizing my 300 Win. Started with a .329 bushing and switched to a .331.
Now I have about 75 cases of each neck size.
Is there an easy way to give them all the same bullet pull?
Neck size the 331s to 329?
Run them through a Sinclair expander mandrel?
Carbide sizing button?
Lee Factory Crimp die?
Or should I just keep the brass in separate lots?
The brass is otherwise identical.
Ammo is for long range target shooting.

 

[thrusty]

Keep them in separate lots and just shoot them....on the next go around, use whatever bushing you choose to go with. You're over thinking it....