Experimental?

No need to go into the dark woods alone, have Tom Armbrust run whatever load you want to use through his pressure gun system and get the straight dope on what your load is worth.

That's THE way to know for double damn sure what pressures your handloads are doing.
There is no good reason to avoid that step in your process.
Tom is a great guy, and his work is credible and respected.

Cheers
Tinker