Concentricity gauge?
- Thread starter rmbgreen
- Start date
Re: Concentricity gauge?
I have to say that I have started using Redding dies, 223 and 308 and I have found the reloads to be less than .002 and below on the Hornady Concentricity Gauge vice my Older Dillon Dies that could be as much as .008 and worse on some. If the numbers remain to be true I don't think I need the gauge anymore.
I have to say that I have started using Redding dies, 223 and 308 and I have found the reloads to be less than .002 and below on the Hornady Concentricity Gauge vice my Older Dillon Dies that could be as much as .008 and worse on some. If the numbers remain to be true I don't think I need the gauge anymore.
Re: Concentricity gauge?
The gauge is helpful to either verify your reloading process/components are good to go or show you if you have a problem. I feel it's a good diagnostic tool. Not something that needs to be used often when you have everything working correctly but always nice to use it to verify the round is good to go if you make a change in your reloading process.
The gauge is helpful to either verify your reloading process/components are good to go or show you if you have a problem. I feel it's a good diagnostic tool. Not something that needs to be used often when you have everything working correctly but always nice to use it to verify the round is good to go if you make a change in your reloading process.
Re: Concentricity gauge?
YES, definitely. In my limited experience runout is affected at least as much by brass quality (uniform neck wall thickness) as by dies.
My recent frustration is grossly excessive runout in 300 Whisper using brass formed from FGM .223 brass. Nothing I tried with regards to sizing and neck expanding improved results meaningfully. Finally pulled out my neck turner, and voila, the needle barely moved on a piece of brass that formerly showed 0.009" TIR mid neck.
Without the ability to measure you're working on guesses and assumptions.
Randy
YES, definitely. In my limited experience runout is affected at least as much by brass quality (uniform neck wall thickness) as by dies.
My recent frustration is grossly excessive runout in 300 Whisper using brass formed from FGM .223 brass. Nothing I tried with regards to sizing and neck expanding improved results meaningfully. Finally pulled out my neck turner, and voila, the needle barely moved on a piece of brass that formerly showed 0.009" TIR mid neck.
Without the ability to measure you're working on guesses and assumptions.
Randy
