concentricity gauge

[bobm]

Has anyone made there own tool.

Go back and see reply #11. Custom Deluxe one of a kind by yours truly. 8) Not for sale at any price. ;D

 

[TimP]

Accuracy One makes a wheel driven concentricity gauge that I don't hear to much about when these type of gauges are discussed. I remember seeing it when it first came out and then was reminded of it in todays bulletin... If you own one or have had the opportunity to test one I would like to hear your opinion of this tool.

 

[mikecr]

I don't have an Accuracy One yet, I use Sinclair. But I'm confident Accuracy One is the best out there.

 

[BoydAllen]

Not having one in hand, I can only go on what I read in the review that was done on this site, but based on that, it appears to be a very high quality unit, that is well designed. Because I have other units that get the job done quite nicely, and even if I didn't I would have trouble justifying the expenditure, but I am constantly reminded by pictures of fine looking rifles on this, and other sites, many others have larger budgets for this sort of thing. If I was one of those, I would probably already have one. There is always some indicator bobble that is induced by rolling a case by hand, and this unit seems to solve that problem quite elegantly.

 

[Bart B.]

bigedp51, where does the reward force on a Mauser style external extractor come from that would pull a chambered case head against the bolt face so the bolt face touches the extractor claw?

 

[bigedp51]

bigedp51, where does the reward force on a Mauser style external extractor come from that would pull a chambered case head against the bolt face so the bolt face touches the extractor claw?

I'm going to quote what you just said, so you can't change it, not only are you misquoting what I have said, you are now saying things that are physically impossible on a bolt action rifle to your postings.

You really need to stop posting in this thread before you make yourself look even more foolish.

 

[Bart B.]

I think you're saying the claw holds the case head against the bolt face when in reality the case head is held against the boss opposite the extractor claw. While it may look like the case head is "held against the bolt face" in reality it can be one or more thousandths away from it as the case rim opposite the claw is pressed against the metal surface 90 degrees off from the bolt face and not backwards against the bolt face. There is not backwards force on the extractor claw pulling the case head back against the bolt face. All the Mauser type/style bolts I know of and have measured have a minimum clearance to the bolt face at least a few thousandths inch greater than the thickest case rim dimension.

So, you, more importantly, really need to stop posting in this thread before you make yourself look even more foolish.

 

[37Lincoln1]

How long is this going to go on?

 

[bigedp51]

37Lincoln1

I decided to use the forums Preparation H to get some relief.

My dad always joked that he had "Texas teeth" with wide open spaces and I have said many times we live in a plus and minus manufacturing world.

And some people have "Texas" claw extractors with wide open spaces and some of us don't.

I full length resize my cases, I have both type gauges and I prefer the "rat turd in the violin case approach".

 

[Patch700]

...I'm going to copy and paste myself out to the shooting bench today... Then when i get back I'm going to F/L size some brass , check my die setup with the whidden comparator that came with the die , then seat bullets in my sliding chamber seater... Then go do some more shooting and the paper will let me know how concentric my stuff is lol

 

[bozo699]

No good.

I bought the Hornady gage with much anticipation when it first came out, hoping it would be a useful precision gage which could also be used to manually straighten improperly seated bullets (as they advertise) I got rid of it not to long after. The Sinclair concentricity gage provides much visibly easier readings to use off of the outside of a case, while the Hornady provides readings off of the case axis which are often too small and indistinguishable. IMHO, I feel like those folks who own only a Hornady gage will not know how mediocre that gage really is until they have tried a Sinclair gage.

Oh.....and forget about the Hornady bullet straightenung feature; I found it to be a tedious trial and error process...... and a bad idea anyway! (ie; seat your bullets straight to begin with)

Spot On!

Wayne.

 

[bozo699]

I think that old military rifles are charming, and fun to get out of the safe every once in a blue moon, but frankly, this is accuraterifle.com and no serious contemporary accuracy work is being done with SMLEs or Mausers for that matter, soooo while I see your point, I think that giving people advice based on those actions on an accuracy forum, might mislead the inexperienced. I have to say that I really like my Swede, and I have a owner customized (not by me) no.4 Mk1 that would make you laugh, that I figured out to the extent that I shot at least one five shot 1" group with it with handloads. Having said all that, IMO neither have much of a place in a serious discussion of modern accuracy.

Another Spot on!
Wayne.

 

[bigedp51]

No good.

I bought the Hornady gage with much anticipation when it first came out, hoping it would be a useful precision gage which could also be used to manually straighten improperly seated bullets (as they advertise) I got rid of it not to long after. The Sinclair concentricity gage provides much visibly easier readings to use off of the outside of a case, while the Hornady provides readings off of the case axis which are often too small and indistinguishable. IMHO, I feel like those folks who own only a Hornady gage will not know how mediocre that gage really is until they have tried a Sinclair gage.

Oh.....and forget about the Hornady bullet straightenung feature; I found it to be a tedious trial and error process...... and a bad idea anyway! (ie; seat your bullets straight to begin with)

Spot On!

Wayne.

Dear Wayne

Glade to see you back, "BUT" seeing your "spot On!" reminds me your reading too many books from China like...........

"Brown spots on the wall" by Hu Flung Pu"

Signed
Eccentric Concentric

 

[cncmill]

This is the best one I found.

http://forum.accurateshooter.com/index.php?topic=3806816.msg36180275#msg36180275

Erick Crouthamel

 

[LRCampos]

Accuracy One makes a wheel driven concentricity gauge that I don't hear to much about when these type of gauges are discussed.

I thought about buying one... but the price was a bit too high for me, around 400 dollars.

I went with 21st Century and I am pretty happy with it.


LRCampos.

 

[rox]

I went with 21st Century and I am pretty happy with it.

I also went with the 21C gauge and I'm very happy with it. It's much more sensitive that the gauge I used to use, and it's helped me to reduce runout by refining my process.

..

 

[mikecr]

The 21C is a good one.