Is Chamfering necessary?

[nyc71]

I purchased 500 boattail round, I noticed the bullet (Hornady FMJ BT) fits on the case without Chamfering.
Is this step still necessary?
Thanks in advance.


"They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety"- Benjamin Franklin

[yakmon]

chamfering helps alot with flat based bullets, but imo with boat tails, unnecessary, if there's not burrs on the brass.
if its fresh trimmed brass, than a quick chamfer on the inside is a good idea.

[bruceflinch]

Outside chamfer gives you a cleaner crimp &/or the cartridge chambers a bit better.

[yakmon]

Outside chamfer gives you a cleaner crimp &/or the cartridge chambers a bit better.

agreed, i neglected to say this.

[huckberry668]

Chambering is needed mostly after trimming. I chamber the once fired brass even not trimmed because chamfering inside of the mouth will avoid shaving the bullet during seating. You can imagine why a shaved bullet will potentially affect accuracy.

Chamfering the ouside will help reduce FTF and cutting your hands.