What is it?????

[abunaitoo]

Got this in a box I was gifted.
I know what it is.
But it's not seen, or used much.
So............................ What is it????????

257878

[Pressman]

Well, I can say I have seen one a long time ago, long enough to be forgotten.

[metricmonkeywrench]

Knudsen Valve reset tool

[quack1]

Looks like a gauge to segregate 22 rf by rim thickness.

[bullet maker 57]

I'm with quack1.

[FLINTNFIRE]

quack1 has it have that same tool on my shelf , sort 22 rimfire by rim thickness , if you are willing to do that you will see an improvement in accuracy from cheaper 22

[dakotashooter2]

Looks like a thingamabob to me.

[smoked turkey]

well if it isn't a thingamabob, it must be a whatchamacallit

[brass410]

didle daddle adjustment tool for duck bridles

[rking22]

Yep, rim thickness gage for sorting. Almost bought one years ago, decided to just trust Eley to do it.

[Dapaki]

Wow! Never seen one before (didn't even know there was such a thing!). :awesome:

[jsizemore]

Neal Jones rim thickness gauge.

[abunaitoo]

It is a Neil Jones .22 RF head space gauge.
Neat little tool.
I'm sure for precision .22RF shooters, it is a must.
For me and my 10/22, I don't think so.
But you never know.
I'll give it a try, and maybe make a report.
If I can find some time

[parson48]

Looks like a thingamabob to me.

Extremely rare left-handed one!

[abunaitoo]

Funny
:bigsmyl2:

[nicholst55]

http://www.neiljones.com/html/rimfire_gauge.html

[abunaitoo]

Wow!!!!!
I didn't think it cost that much.
For that much it better shoot better.

[GOPHER SLAYER]

I made a rim gauge for the 30-30 family of cases. I intended to make an adapter for .22 RF but never did.