Thread: Bushing dies

Cheers.I guess what I'm not understanding is why there is a need to size the neck to a specific size instead of just a standard resize?
and how do you know that you want a specific size?
Run out etc maybe?

Originally Posted by jakewire

Cheers.I guess what I'm not understanding is why there is a need to size the neck to a specific size instead of just a standard resize?
and how do you know that you want a specific size?
Run out etc maybe?

Theory is to seat a projectile and measure the neck.
Whatever that measurement is get a bushing that will size the neck 2 thou less.
For example my 260 is .294 with projectile seated. So a 292 will theoretically give me 2 thou tension for that specific brass projectile combo.

I use 4 thou on one cartridge and still get excellent ES

As I said normal dies can be perfect.
For hunting ammo used within normal ranges I wouldn't bother with bushing dies.



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