Neck thickness gauge; what do I have?

[LeadHead]

Recently I picked up some reloading equipment--including this neck thickness gauge--from the estate of a gentleman who was a long-time reloader and gun shop owner. I've not been able to find one exactly like it and was wondering if it's likely to be a homemade model or what. Can anyone tell me anything about it?
Thanks!

 

[LRPV]

Looks like a quick way to check for neck thickness variations.

 

[WillyTP]

Just like what LRPV said, neck thickness checker. Here’s an older bulletin post about them. At the very bottom you’ll see the Neilson Neck Checker of which it looks like yours was modeled as.

Tools for Measuring Case Neckwalls

Tools to measure cartridge case neckwalls. Neck wall thickness. Neckwall gauge and neck thickness uniformity measurement. Improve rifle shooting accuracy by uniforming brass necks. Technical articles for precision reloading, benchrest accuracy. 6mmBR, 6PPC, Reloading, Message Boards, Reader...

www.6mmbr.com

 

[R.Morehouse]

Looks to me like an I.S.W. I have a neck trimmer and case holder here that look very similar, there are the letters I.S.W. stamped on both pieces very small. Mine has an instruction sheet with an address that says........................I.S.W.
106 E. Cairo Drive
Tempe, Arizona 85282

Regards
Rick

 

[Rat Rifle]

That is a real cool tool !

No group is more OCD than reloader‘s !

 

[LeadHead]

Looks like a quick way to check for neck thickness variations.

Ya think?? Never in a million years would I have expected a "neck thickness gauge" to actually measure.... neck thickness.

Just like what LRPV said, neck thickness checker. Here’s an older bulletin post about them. At the very bottom you’ll see the Neilson Neck Checker of which it looks like yours was modeled as.

Tools for Measuring Case Neckwalls

Tools to measure cartridge case neckwalls. Neck wall thickness. Neckwall gauge and neck thickness uniformity measurement. Improve rifle shooting accuracy by uniforming brass necks. Technical articles for precision reloading, benchrest accuracy. 6mmBR, 6PPC, Reloading, Message Boards, Reader...

www.6mmbr.com

Yes, that was the closest similar one I was able to find online, thanks.

Looks to me like an I.S.W. I have a neck trimmer and case holder here that look very similar, there are the letters I.S.W. stamped on both pieces very small. Mine has an instruction sheet with an address that says........................I.S.W.
106 E. Cairo Drive
Tempe, Arizona 85282

Regards
Rick

Other than the information on the dial indicator I couldn't find any other marks but will look again, hopefully after work this evening.
Do you happen to have a picture of yours for comparison?

 

[R.Morehouse]

I will see if I can get one up by this evening...........

 

[R.Morehouse]

Here you go......Crap picture, the ISW stamp is that small blur just south of the carbide cutter.

Regards
Rick