Chamfer/debur before neck expanding or after?

[harry_x1]

Need help with deciding correct order. Specifically I am confused if chamfer/debur should happen before next expansion or not.

my body size die also has an integaral neck bushing...so basically I will be 1) body sizing and over tightening neck first. Then I plan to run the case through an 2) expanding mandrel to get correct neck tension. Then 3) trim the brass followed by 4) chamfer/debur. Is this the correct order? Once fired brass.

 

[KnowNothing256]

Yep, that’s right. There are unusual cases when the order should be changed, such as necking brass down or up to change the caliber, but for normal reloading you have it right: all the sizing steps, including mandrel, then trim, then chamfer/deburr.

Trimming is only strictly necessary if you’re at or near max case length, often takes several firings to get there. However, some people like to start each load with a clean slate, so to speak, so they’ll trim/chamfer/deburr every time.

If you wet tumble to clean your brass, you will generally need to chamfer the inside of the neck afterwards, whether or not you trim the length.

 

[canezach]

That's the order I go with. Size with neck bushing- mandrel to set neck tension- trim/chamfer/deburr. I use a Giraud, so even if the brass doesn't need a trim, it gets a light chamfer and deburr

 

[acudaowner]

I figure it's up to you I size then do my neck expanding , then trim chamfer and de burr then clean and primer , powder , and press so you can do it how ever it feels best to you best of luck .

 

[High Desert duck]

After.