Homemade or Factory Modified 22 rimfire Concentricity Gauge

[DanConzo]

Does anybody have any 22 rimfire custom modified or homemade concentricity gauges they would like to show pictures or descriptions of? Thanks.

 

[DanConzo]

I know that there are a couple available like Neilsons and Accuracy One, etc and that some have converted and modified the New Hornady concentricity gauge for 22 rimfire.

 

[jonbearman]

All I did was take some delrin plastic and drill a hole to allow the whole case to allow it to drop in and then couterbore it half the thickness of the rim and then all you have to do is measure overall length and rim thickness can be sorted to all the same.Make sure when you counterbore it is a flat surface so the rim can sit squarely.You could just drill it and forget the counter bore and chamfer the hole so it can sit square and measure that way,but I like complicating things,LOL

 

[DanConzo]

Thanks but I have gauges to check the rim thickness (headspace) and base to ogive length and overall length. I want to make a concentricity gauge (straightness of the bullet in the case) and I'm looking for some ideas. I have one figured out but maybe there is a better way to do it.