Chamfer

[TW45]

Do you always chamfer a cartridge or only when after you trim?

[johnnymoses]

I'll knock the edge off a rifle case inside and out if I trim it. I mostly neck size only in bolt guns after the case is fireformed.
I never trim 45acp cases at all.

[Rubline]

What type of cartridge? Pistol or rifle? With pistol cases, one of the dies will flare the case mouth. With necked rifle cartridges, it makes starting the bullet easier with a chamfer on the case mouth while seating.

[TW45]

Pistol, 45acp

[DirtyRod]

Originally Posted by TW45

Do you always chamfer a cartridge or only when after you trim?

Only after a trim and I never trim pistol cases. It's generally rifle cases that grow requiring trimming.

[sltimmer]

I never chamfer my 45ACP rounds.

[RetiredRod]

For straight wall handgun cases I only chamfer them if the brass is brand new and never been loaded. New brass gets chamfered inside & outside neck.

[340six]

never on pistol with the exception of new brass. I never get new brass except for times like 45Colt etc. But when i do I measure and trim if needed then do the inside and outside. Rifle is always done

[TW45]

Cool thanks guys, wasn't in the directions lol

[FLSlim]

But if you ever decide to trim brass, for some reason, it does help to very lightly chamfer the inside and outside of the case mouth to knock off any burrs.