Question

[Dusty Stevens]

Great question the MK3 gauge is unique in that is measures off the Ogive. here is how it does it. the cup that rests against the bullet rides inside the body of the gauge with a very low-tension spring it is preloaded so when you insert a round it will move up and move the indicator stem to give the reading. I use a digital indicator for more accurate measuring.
It should be noted that Bill Calfee at one time advocated that Eley should put the OAL of the lot and not the speed. he mentioned a shooter could simply match the OAL to the barrel that it will shoot good in.

Lee

What internal shape does that cup have that hits the ojive?

 

[USMCDOC]

Correct me if I'm wrong here but rim thickness gages have nothing to do with where/when the bullet contacts the lands.

If you are referring to the G3 MKII gauge, it isn't a "rim thickness" gauge..

 

[Dusty Stevens]

If you are referring to the G3 MKII gauge, it isn't a "rim thickness" gauge..

That article showed one along with the ojive gage made by the same guy. I think he saw it first

 

[USMCDOC]

What internal shape does that cup have that hits the ojive?

 

[Dusty Stevens]

Thanks doc! Id sure like to have one of those

 

[USMCDOC]

Thanks doc! Id sure like to have one of those

you are very welcome Dusty

 

[1911nut]

Another detail; the “cup” that contacts the bullet stops on the front edge of the front drive band not on what I think of as the ogive. And it’s a sharp edge to cut through wax. It doesn’t leave a mark on black box or CenterX

 

[Hi-NV Shooter]

View attachment 1406563

Time to fire up the lathe and mill I know shooters who want one

Lee

 

[USMCDOC]

Time to fire up the lathe and mill I know shooters who want one

Lee

The mill is running.. still working on the lathe..

 

[Hi-NV Shooter]

What internal shape does that cup have that hits the ojive?

Dusty, it is bored to a precise diameter to fit the shape of the bullet and just seat against the Ogive. I never measured it.

Lee

 

[USMCDOC]

Time to fire up the lathe and mill I know shooters who want one

Lee

i can make one on the mill.. i have the design and can make em

 

[USMCDOC]

Dusty, it is bored to a precise diameter to fit the shape of the bullet and just seat against the Ogive. I never measured it.

Lee

yeah.. i have that number

 

[Hi-NV Shooter]

The mill is running.. still working on the lathe..

I hear you. think about what I said when things are all set. this and bore guides

Lee

 

[USMCDOC]

I hear you. think about what I said when things are all set. this and bore guides

Lee

gonna build a new style one pc rest too

 

[Hi-NV Shooter]

i can make one on the mill.. i have the design and can make em

let me know

 

[Hi-NV Shooter]

gonna build a new style one pc rest too

I know about that project.

 

[Dusty Stevens]

gonna build a new style one pc rest too

Let me know too

 

[MUP]

Time to fire up the lathe and mill I know shooters who want one

Lee

I was just about to post that I'm so glad that I'm a Machinist! I'll be making my own soon hopefully as well!

 

[elkhunter6767]

Here is the phone number of the guy that makes the G3
860-354 7500

 

[Hi-NV Shooter]

Here is the phone number of the guy that makes the G3
860-354 7500

I was under the impression he is no longer making them. have you contacted him recently in say the last 30 days?

Lee