Hornady Concentricty Tool

[Hobie1]

Anyone using the Hornady Concentricity Tool to correct run-out?

Yes, I know it could be a bandaid for less than perfect loading procedures.

Hobie

 

[jepp2]

Same reply as my reply to your post on TFL.

Yes I have a Hornady. Yes I have used it to correct runout. No it didn't help accuracy.

 

[Pgothro]

I have used mine for 2 years and it works great on bottle neck cases I have not used it for pistol (straight wall) cases. It has improved accuracy for me.

 

[Hobie1]

My loads generally run okay run-out wise but I'd like to tweak them that last little bit.
My Remington 700 PSS .308 has had the barrel head-spaced(cut down and reamed with a match grade reamer), match crown, and trued up and is a sub MOA gun without much effort. I'm curious how much I can squeeze out of my Sporter. I do realize that it's not a bench gun but it's fun to try.
It's all good. I like the challenge even if the end results don't necessarily justify the means.
Hobie

 

[Hobie1]

Yep, OCD kicked in....

Bought it anyway

--------------------------------------------------------------------------------

Yep, couldn't help my OCD self. First of all, it's very well constructed. Nice looking instrument. I didn't like not being able to sit at my bench and see the dial indicator at an angle. So, I mounted it to a board and tilted the whole thing 90 deg using a small hobby vise I had. This enables me to look straight at the indicator at eye level while sitting down.
Now to the nuts and bolts of using it. It's easy to set-up and use. However, using my RCBS casemaster tool which does use v-blocks, I would see substantial differences(more indicated run-out) in run-out than from the Hornady unit. Hmm. But by first measuring the round using the RCBS, then putting the round in the Hornady, I can "tweak" the round to where I end up with virtually no run-out indicated by the RCBS. Less than .002 in most instances. As an side-note, I found some badly loaded rounds that the neck was bent. Time to re-visit my sizing procedures. Not many but enough to pay lots more attention. The strange thing is that the batch was all processed at the same time on the same equipment.
In conclusion: Is all this worth the expense, time, and trouble? Probably not for my Sport. For my .308, maybe. As I have time to actually shoot these tweaked rounds, I'll post back and report the un-altered info.

Hobie...with obviously too much time on his hands.

 

[RIKMAN]

I have the HRN tool and used it. I checked my 308Win loads shot at 60yards. Many say you don't need the tool and it's your dies or their install that create runout. I use Redding dies for rifles and I figured it can't hurt to check and correct any runout found for long range ammo, maybe I'm OCD too ;-)

 

[tomf52]

I saw first hand one reloader at the range who couldn't get better than 1 1/2" to 2" groups out of his Remington pump gun in 35 Rem caliber until another shooter put them through his Hornady runout tool. The groups were cut in half or better size wise. It also helped out my 223 an appreciable amount also. If I ever get serious about rifle shooting I get one.

 

[Hobie1]

Thanks!

I appreciate your input. I always figured that if you can eliminate or reduce all controllable variables, you've done the best you can. Does this always translate into tangible results? I can't say from my personal experience but the way I look at it is this is my hobby. Yep, I probably spend more time and effort than might be necessary but it gives me something to focus on and I like that.
As long as I practice safe re-loading whoo hoo! Life is good!
I don't always load my own rounds but when I do, I prefer precise techniques. Stay accurate my friends.
Hobie

 

[jepp2]

Many folks do claim significant accuracy improvement from rounds that have been corrected. I just haven't experienced that yet with what I have tried.

The greatest value is checking your loaded rounds, and being able to evaluate if your changes are making improvement or not. Things like using an O-ring under the lock nut, different kinds of sizing dies, different seating dies, locking down the seating die's stem with it loaded, and on and on. More concentric ammo will be more accurate, and this is a great tool for checking and if you wish to correct.

 

[Hobie1]

I agree. My situation is that I got out of the whole game several years ago and just really starting again the middle of last year loading my ol' .45 acp wadcutters.
I'm thoroughly enjoying getting fully back into the loading scenario again and boy is it apparent to me that I need to really pay attention.
Thanks for all the comments folks!

Hobie....out..well sort of