Quickload, CB, Z1 and accuracy?

[andym79]

Hi guys I use Quickload as a useful tool in helping to fins loads.

For a while I didn't notice Z1!

I believe it marks the powder's progressive burning limit.

I think if Z1 is to the left of max pressure then the powder is likely to be too fast for the loading combination?

Does the same go for if Z1 is to the right of max pressure then the powder is likely to be too slow for the loading combination?

Ideally and theoretically (contradictory to a large extent) should Z1 be on top of PMax?

Also how relevant is Quickload to CB versus the Jacketed variety?

For example at the target velocity I want my 30-30 and 375W at Quickload shows Reloader 7 to be the best choice!

With my 6.5x55 it shouws Varget!

Any thoughts, opinions or experimentation in using QL to help find and/or develop loads?

Thanks