OzFclass

One should be careful when describing that you will be measuring your "play and flex" Woody!!!

Otherwise it seems a coincidence that just last night I got a txt from a mate that just made himself a tool that fits to a shell with progy attached that is then placed in the chamber while the progy is moved forward and adjusting rod then locked of to be measured upon withdrawal....

Cheers

Rob A

Hello All,
With all the replies, and checking and testing, I have found that excessive, or uneven neck tension will give varying results. It seems that if you use a neck sizing die only, and not neck turn to give concentricity, this will vary where the projectile is seated and inturn vary neck tension.
Thank you all for the replies, it makes you think.
Cheers