Chamfer 6.5 CR Brass How Often

[WinJim1863]

I posted a message about a week ago complaining that on seating I was cutting copper rings of the bases of ELD-M bullets. I got lots of replies and 2-3 that suggested I chamfer with a VLD bit (which I had never heard of). I used it on my last reload and it worked great- no more cutting bullet bases on seating and no more variable seating resistance. So I just wanted to thank all who responded and made suggestions.

In the past I have only chamfered inside of the neck when I trim to length. Should I be doing it with the VLD bit on every loading?

Thanks, JimB

 

[Diver160651]

I posted a message about a week ago complaining that on seating I was cutting copper rings of the bases of ELD-M bullets. I got lots of replies and 2-3 that suggested I chamfer with a VLD bit (which I had never heard of). I used it on my last reload and it worked great- no more cutting bullet bases on seating and no more variable seating resistance. So I just wanted to thank all who responded and made suggestions.

In the past I have only chamfered inside of the neck when I trim to length. Should I be doing it with the VLD bit on every loading?

Thanks, JimB

Same as you did in the past. If you have to trim, the chamfer. Be a bit careful as you do not need a bunch of material removed.

As far as a trimer that chamfers inside and deburs the outside, you could go with a $500 https://www.giraudtool.com/giraud-power-trimmer.html or what I think is a great compromise at $150 https://www.blackwidowshooters.com/product-page/trim-it-ii The trim-it is much easier to set up and use than the giraurd tri-way

 

[Milo 2.5]

I posted a message about a week ago complaining that on seating I was cutting copper rings of the bases of ELD-M bullets. I got lots of replies and 2-3 that suggested I chamfer with a VLD bit (which I had never heard of). I used it on my last reload and it worked great- no more cutting bullet bases on seating and no more variable seating resistance. So I just wanted to thank all who responded and made suggestions.

In the past I have only chamfered inside of the neck when I trim to length. Should I be doing it with the VLD bit on every loading?

Thanks, JimB

I would shoot your work and get a baseline for accuracy, is it fine, need more tuning, maybe the chamfer made your loads too good, lol
Here is a fact, if something is working to your satisfaction, why would you not repeat the steps that got it there, if your load shoots with a hard chamfer, continue, same with differing degrees of a chamfer.

 

[CanSniper]

If you tumble your brass you need to chamfer every time. Running through the tumbler (wet or dry) rolls the edge over to the inside, causing a burr to develop. Over chamfering magnifies the issue by making the edge to thin.

 

[WinJim1863]

As far as a trimer that chamfers inside and deburs the outside, you could go with a $500

I have an RCBS trimmer with motor that does quite well. I recently bought their cutter that also chamfers and deburs . Will now have to finish with VLD tool.

 

[WinJim1863]

CanSniper,

Yes, I tumble w/ SS pins and you're right, I'll have to lightly chamfer and watch the edge. I'm going to cut down on time in the tumbler as first step.
Thanks