Concentricity Guage

[JohnW...ski]

I am planning to get a concentricity guage and only want to do it once, how about some pros and cons on the ones out there and which is best in your opinion?

Thanks,

John

 

[MrMajestic]

NECO, bullet runout is not the only thing it does! I personally like the case wall variation setup for checking the brass prior to loading.

 

[stumpm2]

I have the 21st Century and I think you will be hard pressed to find a better one. Had a Forster Coax and there is no comparison.

 

[dig]

After buying a Hornady - Junk I purchased a used NECO very good then an H&H industries which is my preference. I can not say enough good things about H&H service and product. Google them H&H industries Albany Oregon, you will be happy.

 

[JohnW...ski]

I have looked at the H & H and at the 21 st Century and so far am more impressed with the 21 st Century tool. They do not mention bullet concentricity but I imagine that can be measured as well although there is no provision for correcting bullet runnout.

John

 

[markm87]

I've got the Sinclair. Works fine... but I've not used anything else to reference its pros/cons.

 

[vern]

+1 For Markm187

 

[Hopkins]

+1! on the Hornady being junk!

 

[markm87]

+1! on the Hornady being junk!

I remember thinking that thing had promise when the ads came out.... Glad I didn't spend the money on it.

 

[Hopkins]

The Hornady tool depends on the case head being perfectly round to create 1/2 of a true axis for measurement. That proves to be its design weakness and undoing.

 

[jlow]

Not wanting to pick a fight but want to put in my own experience.

I have owned the Sinclair, the Hornady, and the NECO. The NECO is certainly the most dynamic as it can do the most but the price reflects this.

Between the Hornady and the Sinclair, I would say the Hornady wins hands down as I could never get the Sinclair to read reproducibly. The Hornady has been 100% reproducible despite what people say about where it indexes and the problem with this which has not proved out in actual practice.

What most people don’t know is how to use it in terms of adjustments. They think that if the runout is one way, they push the other direction until it counterbalance the runout. The fact is what is happening most time is the runout is due to the bullet sitting cockeye in the case and pushing it allows it to wiggle back to the center. Have used it on hundreds of rounds this way.

 

[Taildrag15X]

I use a Bersin Tool:

http://www.centuryarms.com/bersin.pdf

I never use the adjustment for any thing that will be shot for Record, but have tweeked the pratice ammo......

 

[jlow]

Unfortunately, or fortunately, all my rounds are for practice only - LOL!

 

[JohnW...ski]

I went ahead and ordered a 21 st Century Concentricity Guage today. I liked the design although there is no provision for correcting runout.

John

 

[Leaddog]

I went ahead and ordered a 21 st Century Concentricity Guage today. I liked the design although there is no provision for correcting runout.

John

Concentricity gauges are for measuring. Correcting runout is a function of good reloading technique.

The 21st gauge appears to be a first class unit and would be the one I would get if I was in the market. Of course, there are some very fine units in the machining world, too.

 

[jlow]

Concentricity gauges are for measuring. Correcting runout is a function of good reloading technique.

Hard for me buck that logic, but the problem is concentricity seems to me to be yet another one of those reloading techniques that makes perfect sense in terms of logic but I have never seen any proof one way or another to show that it matters – seems like there is a lot of this type of techniques in reloading.

Anyone know where one might find some write-up that would qualify as scientific proof?

 

[bozo699]

I went ahead and ordered a 21 st Century Concentricity Guage today. I liked the design although there is no provision for correcting runout.

John

Concentricity gauges are for measuring. Correcting runout is a function of good reloading technique.

The 21st gauge appears to be a first class unit and would be the one I would get if I was in the market. Of course, there are some very fine units in the machining world, too.

100% spot on!!
Wayne.

 

[JohnW...ski]

Makes sense to me, thank you.

John

I went ahead and ordered a 21 st Century Concentricity Guage today. I liked the design although there is no provision for correcting runout.

John

Concentricity gauges are for measuring. Correcting runout is a function of good reloading technique.

The 21st gauge appears to be a first class unit and would be the one I would get if I was in the market. Of course, there are some very fine units in the machining world, too.

 

[Martin52]

I use a Sinclair, the more recent version with rollers balls. Consistent pressure when rolling the case is necessary for accurate measurement. As others have commented, the tool is for measuring, I would not correct a loaded round, I would check my reloading technique and equipment, the sizing die is critical.

Martin

 

[stiles]

I'm unaware of any concentricity gage marketed to handloaders, but there are plenty of TIR gages.