Sorting Center-X rim to ogive

[USMCDOC]

You might want to give Gerry a call,(860)354-7500, and ask him if the tool takes 3/8" shank diameter dial test indicators. Nice fellow, loves to talk.

just measured mine. it measured with my caliper.. .374

 

[efoleyjr]

Jim,

Here where it measures from

Lee

What is the OD measurement for the point on the bullet that contacts the gauge and the ID on the gauge at the contact point. Is the point of measurement on the bullet on the ogive or up on or near the grease ring? Thanks
Ed

 

[efoleyjr]

Jim,

Here where it measures from

Lee

Lee,
To clarify, do you measure from the shelf at the ogive/grease ring junction to back of the rim or a point on the ogive or grease ring to back of rim? The pictures do not define this critical measurement point. Thanks

Ed

 

[1911nut]

I tried Center X, Midas, Tenex and Match in my gauge same as Lee‘s picture.

The gauge stops on the front driving band of each bullet, not on what we think of as the ogive of the bullet.

 

[Kings X]

I reamed mine with the same one I chamber with. So bullets contacts rifling the same as my chamber. And measure to the back of the rim - like my bolt face.
My gun shoots best with a lot of jam.

 

[Hi-NV Shooter]

just measured mine. it measured with my caliper.. .374

Pat made a good pint as some of the dial indicators have metric stems. so make sure it is 3/8
the model I have is an Absolute #ID S1012EX 0.0005 1/2" range

Lee

 

[Hi-NV Shooter]

Lee,
To clarify, do you measure from the shelf at the ogive/grease ring junction to back of the rim or a point on the ogive or grease ring to back of rim? The pictures do not define this critical measurement point. Thanks

Ed

Ed,
As Art had mentioned it measures off the front driving band. not sure is ogive is the correct way to describe it. but my understanding ogive is the juncture transition point of the curvature to flat or straight plane

Lee

 

[USMCDOC]

I reamed mine with the same one I chamber with. So bullets contacts rifling the same as my chamber. And measure to the back of the rim - like my bolt face.
My gun shoots best with a lot of jam.

If i read this right.. you are chambering so that you have bolt crush.. is that right?

 

[Hi-NV Shooter]

Lee, is the base to ogive gauge used by most serious BR shooters? What percentage regularly use it?

I couldn't say who uses this gauge. I bought mines due to the fact that I use a chamber that is specific to having 0.030 engraving and wanted to see how different length made if any difference.

I can say it won't make a lot shoot better than it can, but will when sorted make it more consistent on how it shoots.

Lee

 

[grauhanen]

The gauge stops on the front driving band of each bullet, not on what we think of as the ogive of the bullet.

According to CIP and SAAMI specs, he bullet itself, is supposed to be 5.72mm or .225" in diameter. Where that diameter first occurs between the nose and the body of the bullet is the point at which the gauge should ostensibly stop. Of course, since not all bullets will be exactly 5.72mm or .225" as the specs require, it may be that the gauge stops at a point other than the exact ogive itself.

Thank you, Lee, for the information which you posted while I was writing this.

 

[justinp61]

I don't believe production .22 ammo has a ojive as most of us think of it, like a centerfire bullet. There is a step from the base of the nose to the drive bands. I measured some Center-X, they measured .224" on the drive band and .2055-.2060" immediately in front at the base of the nose.

I've wondered how .22 ammo was sorted by length, thanks for posting.

 

[efoleyjr]

Ed,
As Art had mentioned it measures off the front driving band. not sure is ogive is the correct way to describe it. but my understanding ogive is the juncture transition point of the curvature to flat or straight plane

Lee

Lee,
Thanks for the info. After talking to Jeff Madison I will be making my gauge using the same chamber reamer that cut the chamber on the gun. That seems to be the best way to sort ammo but only testing will prove it. I have good ammo but I am trying to find that odd round that cost you a match. Thanks again.

Ed

 

[foxguy]

I couldn't say who uses this gauge. I bought mines due to the fact that I use a chamber that is specific to having 0.030 engraving and wanted to see how different length made if any difference.

I can say it won't make a lot shoot better than it can, but will when sorted make it more consistent on how it shoots.

Lee

Just a question, are you finding much variance on the Center-x, Eley Match, or Eley Tenex ammo?
I'm thinking of purchasing a gauge and currently shooting Eley Black box Match. I will be shooting Center-x in the Future.

Thanks

 

[VLNBYR]

I know most of the ARA shooters east of the Rockies and know of nobody sorting their ammo this way, or any other way. Doesn't mean they aren't doing it but does mean they never talk about it if they are.

 

[foxguy]

NECO Gauges Sold Out. They are looking to restock/remanufacture as there is interest in these gauges again.

I would be interested in

Just the gauge body ( One could purchase a Analog or Digital Gauge to use).

or

Die body and gauge.

 

[Kings X]

If i read this right.. you are chambering so that you have bolt crush.. is that right?

My main reamer is an Eley ESP. I head space bolt guns at .043”. Martini at .047”.
Some ammo is crush and some is jump. I just want each string shot with same distance.

 

[Hi-NV Shooter]

I know most of the ARA shooters east of the Rockies and know of nobody sorting their ammo this way, or any other way. Doesn't mean they aren't doing it but does mean they never talk about it if they are.

John, That is probably very true. but I believe a pretty good shooter Hawkeye Wizard I can't remember his actual name did a write and showed it can help.
anyway I used it to mainly weed out lengths I know my rifle will not shoot good with. but when you have really great ammo it is not really necessary. but it can't hurt.

Lee