After stepping back, taking a pause then looking again at this issue and recent events one thing I see stand out. The last two loading of this same load were all done with Norma and PMC brass. This was a total of 45 rounds. Every one fired. This Norma brass I have been loading and shooting for over a year or about 4 reload cycles. Never had an issue with failure to fire using it. This PMC is brass that is once fired, once reloaded and never fired in this rifle. Again all 20 of these fired. I have reloaded and fired PMC brass extensively prior to this and again never had an issue. It has recently struck me that all these firing issues has only started since I started with this Hornady brass which is also when I switched to the Hornady VMAX bullets..
This Hornady brass, 200 pieces, was all started and processed at one time as once fired brass. 100+pcs were loaded and fired in this rifle to start a fire form. After the first reloading/firing it was all processed again as one lot with the intention of using this brass for my league loads. This brass was then meticulously processed to start load development for this league. This was also the beginning of the failure issue. This brass was then processed again and the second loading saw an increase of the problem. Then another 25pcs was loaded for a second time and this group had a 50% failure rate. The FTF from the prior session is what I fired in the model 10 of which 50% of that did fire in the second rifle.
So now all that Hornady brass has been set aside because I just do not have time left to deal with it. I now have just three shooting days left to get a load developed with these VMAX of resort back to the 69gr SMK that I shot last year.
With that I would like to thank everyone for the help and sorry this issue is left unresolved.
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