[rikman]

Just setup my Hornady Concentricity gauge. This is a nice simple tool and it makes correcting run out quick and easy.

[trapper500]

i have been looking at this tool for a spell myself let me know how ya like it do a review on it when youre ready

[rikman]

Trapper,

I think it is a very well built tool and well thought out. I attached it to a hard maple base and it's nice and sturdy and heavy, so it won't move. There is no more room on my reloading bench so the pics show it on my gun cleaning bench. I actually like being to put it away when not being used.

I had loaded 27 rounds of 308 Win with HRN 168 gr Amax bullets and Lapua cases. I corrected the runout very easily and quickly to about .001 and slightly less.

There is a great video at Ultimate Reloader showing how to use the Hornady concentricity gauge.

Rikman

[mineralman55]

It's an interesting tool, and I've seen several videos demonstrating how easy it is to use.

Now, the big question is, does it actually do anything to improve accuracy? I'd love to see some in-depth research into the results of using this tool.

[rikman]

Mineralman55

I'm new at this, but I've been told that it helps out to 600-1000 yds. 100-300yd prob waste of time.

Rikman

[USSR]

Correcting Runout? You correct runout by replacing the dies that are causing the runout.;)

Don

[rikman]

I guess my Redding Match dies suck ;-) ?

Seriously, I thought only something like an arbor press from Wilson have no runout issues?

[USSR]

Well, you're either doing something wrong or got a bad die. I used 2 sets of these same dies for 7 years of 1,000 yard competition, and runout was not a problem. Wind, on the other hand...:D

Don

[amlevin]

I've had one for about 6 months now and like it fine. Most of my is already in the .0015-.002 range from my dies. When checking I can give those that are on the high end a little tweak.

My only complaint is that the slide that holds the bullet end is fairly loose in the body and can confuse one if they don't rotate the bullet in a manner that forces all tolerance in the same direction.

Also, the mount for the correction screw/dial indicator is plastic. It flexes quite a bit when applying correction pressure.

For the price it's a good tool and allows easy checking of a large quantity in a short period of time.

[snuffy]

I doubt this "tool" is correcting a thing. It's masking an underlying problem, like a bandaid. So you push the opposite direction of the high point of the run-out. What bends? In order for it to be "corrected", you have to bend something. Is it the bullet? Or the brass back in the body? Or perhaps the bullet/neck junction. You just don't know.

As long as it satisfied you, I guess it's fixed!:rolleyes:;)

[Walkalong]

Correcting Runout? You correct runout by replacing the dies that are causing the runout.Yep.
I guess my Redding Match dies suck It is possible you got a bad die, or you are not measuring the concentricity properly.
I doubt this "tool" is correcting a thing. It's masking an underlying problem, like a bandaid.Agreed. See Dons first post.

[kelbro]

Tweaking a seated bullet is bound to be altering the neck tension, which is probably more important than runout for consistency.