What Concentricity Gauge are you using?

[markg]

What Concentricity Gauge do you use and why do you like it. What do you dislike about it?

Here are some videos of different gauges.

https://youtu.be/qDrbA0rhGj4 (this is the hornady)

https://youtu.be/HTkjkhKoE9U (the sinclair)

https://youtu.be/O71oLgRqJa4 (independent company)


Thoughts?

[Pathfinder76]

I use the Sinclair one.

[Salavee]

RCBS .. https://www.youtube.com/watch?v=OJsqenj22Vo

[FishHunterPro]

I got the hornady tool, pretty easy to use.

[gitrdun]

Forster

[eric2381]

I have the Sinclair unit with the digital read out. I like it

[tchardy1972]

Originally Posted by gitrdun

Forster

Yep. With the pilots that can be purchased separately it can be used to measure neck thickness.

[BigJon]

I have the dial gauge Sinclair unit. I would rate it as "ok." The part of the gauge that rides on the bullet or case neck and measures the run out sometimes sticks, so you need to watch it and give it a little tap once and a while.

The dial gauge actually looks like a huge piece of garbage compared to the rest of the unit but it serves it's purpose.

[catnthehat]

When I was competing I used a custom made gauge for the .303 British and bought an RCBS gauge later for my other cartridges.
I don't compete any more so don't use them.
Cat

[gitrdun]

Originally Posted by BigJon

I have the dial gauge Sinclair unit. I would rate it as "ok." The part of the gauge that rides on the bullet or case neck and measures the run out sometimes sticks, so you need to watch it and give it a little tap once and a while.

The dial gauge actually looks like a huge piece of garbage compared to the rest of the unit but it serves it's purpose.

Hey BigJon, you can take the back panel off the dial gauge. Clean the stem with fine steel wool, add a drop of very light oil and cycle it in/out a few times. Then clean the tiny rack & pinion gear inside the dial. Or you could just buy a digital dial from Princess Auto for about $30.00.

[gitrdun]

Originally Posted by tchardy1972

Yep. With the pilots that can be purchased separately it can be used to measure neck thickness.

When I purchased mine, it came with a selection of pilots. They are also interchangeable with Lyman as the stem diameters are the same.

[BigJon]

Originally Posted by gitrdun

Hey BigJon, you can take the back panel off the dial gauge. Clean the stem with fine steel wool, add a drop of very light oil and cycle it in/out a few times. Then clean the tiny rack & pinion gear inside the dial. Or you could just buy a digital dial from Princess Auto for about $30.00.

I'll have to take another look at it I suppose. When the problem first came up I thought I looked it over to find a way into the guts...perhaps I didn't. Truth be told I don't use the thing often. When I have a new set of dies I'll spin a number of rounds to ensure nothing is awry or use it to rule out a variable if not seeing desired results.

Thanks though...

[260 Rem]

I have never used a concentricity tool... and am wondering if, when runout is identified, how it is corrected?

[BigRedJeep]

Originally Posted by 260 Rem

I have never used a concentricity tool... and am wondering if, when runout is identified, how it is corrected?

We use a forester gauge. Seems to work good for our purposes. Guys say they straighten the out of alignment rounds with a hole drilled in a piece of wood. I haven't done that as I just call them my fowlers. A .01 out of round bullet might throw a flyer for me anything under .005 seems to be consistent for my equipment and trigger finger.

Edit: I really don't see a benefit to trying to align a bullet by bending the bullet straight possibly bending the case neck also. If anyone has any input on correcting I think a guy could start a new thread without hijacking this one


Sent from my photon beam particle emitter

[BigJon]

Originally Posted by 260 Rem

I have never used a concentricity tool... and am wondering if, when runout is identified, how it is corrected?

Inspect sizing dies (check for eccentric decap/expander ball assembly), try a different sizing die, check over seating die, clean crud out of shell holder, clean crud of surface of press ram where shell holder clips in...

[260 Rem]

I started another thread as suggested by BRJ to discuss remedies. Thanks.

[markg]

I like it when a thread gets lots of good info just slightly off topic. This forum is such a great resource.

[Pathfinder76]

Originally Posted by BigRedJeep

We use a forester gauge. Seems to work good for our purposes. Guys say they straighten the out of alignment rounds with a hole drilled in a piece of wood. I haven't done that as I just call them my fowlers. A .01 out of round bullet might throw a flyer for me anything under .005 seems to be consistent for my equipment and trigger finger.

Edit: I really don't see a benefit to trying to align a bullet by bending the bullet straight possibly bending the case neck also. If anyone has any input on correcting I think a guy could start a new thread without hijacking this one


Sent from my photon beam particle emitter

You bend the case neck with the bullet in it.

[elkhunter11]

I don't own a specialized concentricity gauge. If the accuracy is good, I don't worry about runout.