RCBS 3 Way cutter Inside Bevel adjustment?

[Rule3]

First, does anyone have a good picture of what a proper inside bevel looks like on a 5.56 or 223 Rem case mouth??

I have the above 3 way cutter. It is simple to adjust the outside de burring but I do not understand the inside bevel.

The instructions do not have the picture like the online version. It also says to use the adjustment screw?? What adjustment screw?? The same one on the top used for the deburring??

It says it was pre set at the factory but I am sure I have loosened some of the screws at some time,

With the instructions with picture I can see how the chamfer cutter is supposed to line up with the main cutter, but how do you fine tune that??

I searched and it seems there is some confusion on this.

RCBS is closed today.

 

[Cemetery21]

The inside bevel is cut by the "wings" on the pilot. It seems natural to seat the pilot fully into the cutter head, but that might not allow the "wings" to bevel the inside. I have moved the pilot out just a little (and retightened the set screw) to get the inside bevel I'm looking for.

 

[Rule3]

So just loosen the set screw and pull the pilot out a bit??

Some how the instructions say that is done with an adjustment screw and so much of a turn yields whatever change in the bevel?

So just "wing" it?

 

[Cemetery21]

Ha!
Yes, I didn't find an adjusting screw either. The pilot was probably okay from the factory. I had used the .22 cutter for several thousand rounds. But, I bought a .20 cal. pilot and changed the setup. When I went back to .22, I found I had to set the pilot out a little from full in to get the inside bevel.
So, now I have a second 3-way set up for .20 cal and I don't have to reset when switching calibers.

 

[Rule3]

Yes, It was probably OK BUT I got a hold of it and started turning screws! I do not know what the factory or default setting is or was.

I guess it doesn't matter much as when I chamfer with the Wilson hand tool I just turn it a few times so there is no precise measurement there either.

 

[steve4102]

There is an adjustment screw in the threaded end. Take the cutter out of your trimmer and look into the threaded end.

 

[HJ857]

Yep, the chamfer blades are on the pilot.

You have to remove the cutter from the spindle, look inside and you'll see an adjustment screw. Loosen the hex screw on the side of the cutter that locks the pilot in place, then use the adjustment screw to move the pilot in or out, lock down the hex screw and try it. A little bit goes a long way, so adjust in small increments.

edit. Steve always seems a bit quicker on the trigger than I am!

 

[Rangemaster]

Just ran a batch on mine using the .233 3-way cutter.
I setup the cutter using a piece of brass and the cutter in my hand and twisting it on the brass to get the right adjustment before installing the cutter back on the machine.

 

[Rule3]

Thanks guys, I was just messing with mine and discovered that hidden screw! Was going to post my discovery but you guys already know,

They do not mention it in the destruction so I guess they do not want us messing with it!

I guess I never did mess with it so I will leave it alone. Maybe!

Thanks for the verification.

How do you determine how much taper? Just enough to make the brass shine? Kinda hard to see in the neck of a 223.

 

[steve4102]

They are a PIA to set up, but once done correctly they work Great.

 

[Rule3]

I did a few hundred today and they came out fine.

The 3 way cutter saves a lot of time. I have it direct drive to a hand drill It takes less time and effort than even the LC WFT.

Guess I never did mess with the inside adjustment screw as the chamfer seems fine.

Thanks!

 

[41 Mag]

Since the majority of the cases I trim are 30 cal that was the first one I purchased. I found, like you, that it was doing a wonderful job on the outsides and ends but the insides were almost left untouched. Then I picked up the 7mm pilot to run though a large batch of 7 Rem Mag cases and as I was putting the pilot in I noticed that hidden screw.

After that, as the saying goes, it was all downhill from there on out. It takes about 2 imnutes to adjust for the perfect champher on anything now and I use it for every caliber I have. I just wished they made the pilots in handgun calibers as well. Sure would make running 12-1500, 10mm or 357 cases a breeze.