[Brett762]

I bought these out of curiosity to check against my Manson set in a completely unscientific manner. The GO Gage is fine. The NO GO is closer to the Manson FIELD. In any case, they should get you headspaced.

 

[Brett762]

ZPV is great quality. Remember gauges over here are going to be sami and stuff over sea's are going to be CIP. I prefer to use CIP since that is what the original people used. I have used their stuff and it is good to go but will take a bit to arrive as it is coming from serbia.

The Manson gauges I compared against were the down and dirty CIP. There was a slight difference in the Manson CIP No Go vs the ZPV No Go. This is only an observation, both sets work fine.