The third bullet has this label and they measure .461 on my non-digital micrometer.
The first and second bullets were both made by this company and measure .459. Again non-digital so subject to my eyes and hand pressure.

Thanks to you both, good information. I'm not one to push velocities so no problem about the gas check. If I feel I need more bang, I can use factory loads or my 444.
I googled the National Bullet Co. They were in business from 1976 -2008. If accurate, other forums say the original owner passed and new owner lost it. There were defrauded customers at the end.
I don't remember where I got these. I didn't need them at the time so I'm sure they must have been cheap for me to buy them. Yes, I'm one of THOSE guys.
Now that everything is skyrocketing, I'm glad I packed stuff like this away all those years.
The first and second bullets were both made by this company and measure .459. Again non-digital so subject to my eyes and hand pressure.
Thanks to you both, good information. I'm not one to push velocities so no problem about the gas check. If I feel I need more bang, I can use factory loads or my 444.
I googled the National Bullet Co. They were in business from 1976 -2008. If accurate, other forums say the original owner passed and new owner lost it. There were defrauded customers at the end.
I don't remember where I got these. I didn't need them at the time so I'm sure they must have been cheap for me to buy them. Yes, I'm one of THOSE guys.