VLD - Reamers vs. chamfers

R

Red Ryder

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Full Member
Minuteman
Sep 2, 2004
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Pittsburgh, PA
#1
I've always used an RCBS chamfer tool to debur the inside of the neck mouth after trimming.

Now I see these VLD reamers and VLD chamfers at Gander Mountain.

What's the difference between a reamer and a chamfer? They both look pretty similar.

I just started using Bergers so does that mean I need to buy one of these VLD reamers and/or chamfers?

Your wise and experienced answers are appreciated.

 
#2
Re: VLD - Reamers vs. chamfers

The VLD campher tool just puts a steeper cut on the inside of the mouth, which is supposed to be easier on the jacket when seating the bullet.

There is no VLD deburrer, to do the outside of the case mouth.

I'll get around to buying the VLD tool, but for now, my regular dohickey works fine, even with VLDs.

Chris
 
#3
Re: VLD - Reamers vs. chamfers

The VLD tool provides a better seat for the bullet so that it may be straight when starting the seating process rather making the brass try to straighten the bullet as it's seated. It's more effective for square-based bullet than boat-tails. It also helps prevent shaving of lead bullets.
 
#4
Re: VLD - Reamers vs. chamfers

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Winchester 69</div><div class="ubbcode-body">The VLD tool provides a better seat for the bullet so that it may be straight when starting the seating process rather making the brass try to straighten out the bullet as it's seated. It's more effective for square-based bullet than boat-tails. It also helps prevent shaving of lead bullets. </div></div>

It's called a VLD tool for a reason, as it's meant for 'very low drag' bullets, which are uniformly boat tail bullets. I agree, it might prevent some jacket shaving, however.

Chris
 
#6
Re: VLD - Reamers vs. chamfers

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: RedRyder</div><div class="ubbcode-body">Your wise and experienced answers are appreciated. </div></div>
For a thorough discussion of the topic refer to pp.79-80 for the topics of <span style="font-style: italic">Chamfering</span> and <span style="font-style: italic">Chafe</span>, and the sidebar on p.81 of <span style="text-decoration: underline">Handloading</span> <span style="text-decoration: underline">for</span> <span style="text-decoration: underline">Competition</span> by Zediker. If this means purchasing the book, it may be desirable. While a book is limited to one-way communication, the material presented is not inhibited by potential ego clash as can happen in open discussion. The book will be useful for answering many of your questions like the one presented here.

At risk of creating controversy, you should know that damage to a bullet's base is particularly detrimental to its accuracy.

I'll go way out on a limb and state that a chamfer is a bevelled edge and a reamer is a tool. For what's being marketed at Gander Mountain, they both serve the same purpose. Get one. It does a better job regardless of the application. The one with the smooth handle will be easier on your hand.
 
#7
Re: VLD - Reamers vs. chamfers

Any thing that will knock burrs off the inside of a case mouth is preferred. I run a standard RCBS & Redding chamfer tools (I run one up and one down in power chucks) simply because the VDL tool I bought didn't stay sharp (Lyman).

FWIW I chamfer the outside first.

Cheers,

Doc
 
#8
Re: VLD - Reamers vs. chamfers

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: doc76251</div><div class="ubbcode-body">FWIW, I chamfer the outside first.</div></div>
To prevent knife-edging the case mouth?
 
#9
Re: VLD - Reamers vs. chamfers

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: doc76251</div><div class="ubbcode-body">Any thing that will knock burrs off the inside of a case mouth is preferred. I run a standard RCBS & Redding chamfer tools (I run one up and one down in power chucks) simply because the VDL tool I bought didn't stay sharp (Lyman).

FWIW I chamfer the outside first.

Cheers,

Doc </div></div>

I had the same problem with my Lyman VLD tool. Hell it cuts better backwards than it does in the proper direction! HAHAHA!!
 
#12
Re: VLD - Reamers vs. chamfers

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Winchester 69</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: doc76251</div><div class="ubbcode-body">FWIW, I chamfer the outside first.</div></div>
To prevent knife-edging the case mouth? </div></div>

No because sometimes the outside chamfer will curl crap into the mouth. Then you would have to touch up your mouth again. I'm all about working smarter not harder. Never worried about a knife edge.

Cheers,

Doc
 
#13
Re: VLD - Reamers vs. chamfers

Gees, I've had so much going on the last few days I'd forgotten I'd posted this question!!!

I've always used the RCBS thingey - it can do the outside and inside of the neck. I then give the case mouth a few good twists of scotchbright and presto chango! a nice smooth lip around the mouth of the case.

Thanks everyone for your responses. Guess maybe I'll get a superduper VLD tool one of these days.
 
#14
Re: VLD - Reamers vs. chamfers

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: doc76251</div><div class="ubbcode-body">,,,because sometimes the outside chamfer will curl crap into the mouth. </div></div>
The reason I asked, Doc, is that while I was reviewing Zediker, I noted that he says to cut the outside first. In actuality, he cuts his all at once (machine). I was trying to figure out what difference it makes. Thanks for the enlightenment.
 
#15
Re: VLD - Reamers vs. chamfers

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: RedRyder</div><div class="ubbcode-body">Guess maybe I'll get a superduper VLD tool one of these days. </div></div>
Sinclair sells what appears to be a grinding burr, in carbide. Seems to me that a tool steel version should do as well at much less cost. It's where I'm looking next. Both my Lyman VLD and Forster rocket thingy are dull.
 
#16
Re: VLD - Reamers vs. chamfers

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Winchester 69</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: doc76251</div><div class="ubbcode-body">,,,because sometimes the outside chamfer will curl crap into the mouth. </div></div>
The reason I asked, Doc, is that while I was reviewing Zediker, I noted that he says to cut the outside first. In actuality, he cuts his all at once (machine). I was trying to figure out what difference it makes. Thanks for the enlightenment. </div></div>

Easy day, sometimes I think I stick with doing things the way I do just to show the high dollar crowd that it can be done on the cheap. That being said if I had a Giraud I'd run it in one step too.

Cheers,

Doc
 
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