Ogive to base checker.

[Kings X]

Where can I buy one for 22 LR?

 

[1911nut]

Neco sold a rim to ogive gauge until recently.



Don’t know where to get one now.
I’ve sorted a couple thousand rounds of CenterX for a BR rifle and it’s well worth it.

Here’s something
http://bulletin.accurateshooter.com...hickness-tool-and-base-to-ogive-length-gauge/

 

[Ranger007]

Where can I buy one for 22 LR?

EXCELLENT question.

 

[Ranger007]

Does anyone know if Mr. Gereg is still making both tools?

 

[1911nut]

Contact these guys, they made the rim to ogive gauge until a few months ago.

https://www.neconos.com/

 

[junkyard]

have one 150 plus shipping

 

[Ranger007]

have one 150 plus shipping

Which tool a G3 MKII PRO?

 

[junkyard]

Which tool a G3 MKII PRO?

yes sir have the box also

 

[coldboreshot]

Where can I buy one for 22 LR?

Find a fired .223 case. It may already be squared up at the neck mouth but if you have access to a case trimmer, give it a skim cut. Drop your .22lr round in and measure the rim against the neck mouth.
Works great. Get your reference off the case length.

 

[USMCDOC]

Find a fired .223 case. It may already be squared up at the neck mouth but if you have access to a case trimmer, give it a skim cut. Drop your .22lr round in and measure the rim against the neck mouth.
Works great. Get your reference off the case length.

That's not what he is wanting to do..

 

[coldboreshot]

That's not what he is wanting to do..

Roger that. My bad. It's been a long day.

 

[USMCDOC]

Roger that. My bad. It's been a long day.

don't feel bad.. i read a response on another board and made basically the same mistake..

 

[Ranger007]

have one 150 plus shipping

PM inbound

 

[Ranger007]

Where can I buy one for 22 LR?

Have you had any luck?

 

[Kings X]

I made one. I didn’t understand the ones for sale. That is the engineer in me.
I ran a 22 lr reamer into a piece of aluminum but stopped about .150” short.
Since the bore was not rifled,The lead on my reamer cut a smooth taper.
Drop a round in and the first band on the Bullets stops on the taper. This would be where it engages the rifling in my barrel. The very back of the round is where my bolt would be. So now I can measure a true length of ogive/rifling to bolt face.
this is a rim fire version of a Frank Green Bullet comparator.
I have the gauge/round on a flat plate and pull it under an “last word” style indicator.
150 rounds of SK match had a .008” spread. Three were real short and 17 were way above .008”
Now to test. 10 shot groups at 50 on a baffled outdoor range. Myers action, Shilen barrel, McMillan stock, Leupold 45 comp - off a one piece rest. Gun built by Ed Shilen.
Had an 800-23x last weekend on F Class targets (2 @ 50 and 2 @ 100. I used Lapua Mides sorted.

 

[Ranger007]

I made one. I didn’t understand the ones for sale. That is the engineer in me.
I ran a 22 lr reamer into a piece of aluminum but stopped about .150” short.
Since the bore was not rifled,The lead on my reamer cut a smooth taper.
Drop a round in and the first band on the Bullets stops on the taper. This would be where it engages the rifling in my barrel. The very back of the round is where my bolt would be. So now I can measure a true length of ogive/rifling to bolt face.
this is a rim fire version of a Frank Green Bullet comparator.
I have the gauge/round on a flat plate and pull it under an “last word” style indicator.
150 rounds of SK match had a .008” spread. Three were real short and 17 were way above .008”
Now to test. 10 shot groups at 50 on a baffled outdoor range. Myers action, Shilen barrel, McMillan stock, Leupold 45 comp - off a one piece rest. Gun built by Ed Shilen.
Had an 800-23x last weekend on F Class targets (2 @ 50 and 2 @ 100. I used Lapua Mides sorted.

Very, very interesting. Great shooting too by the way.

 

[Ranger007]

I came across this as well. I often wondered if it would work. Tried it today and it sure does work.

http://bulletin.accurateshooter.com/2007/07/use-6mm-comparator-as-rimfire-gauge/

 

[Kings X]

There again I don’t understand the rim thickness thing.
Most custom guns are set at .043”. So if a rim measures .045” it is going to crush to .043”. If it is .047” it is going to crush to .043”.
But if you have a factory gun with .047” anything less is going to have clearance. And that could be an issue.
—-
Interesting point came out during my ogive measuring. Two rounds .015” difference in base to ogive had the same overall length. how can that be? Different Bullets ?

 

[Tempest]

I machined a gauge and started checking thickness and have found it all over the map depending on mfg. Eley yellow box looks pretty good so far.

 

[OLeveraction]

Interesting point came out during my ogive measuring. Two rounds .015” difference in base to ogive had the same overall length. how can that be? Different Bullets ?

Isn't that the reason for using the ogive as the measure point.

COMPARATOR. Comparing bullets.