The pic is from Lyman's 49th for a 95gr FMJ.
Don't have data for a 100gr FMJ at hand.
Your load might be considered hot.
Prudent to start low and work them up.
If I have two of the same pistols , P238s, PPKs or others,
I work up loads for each starting with loads that are like factory
loads, then go up, with accuracy as the goal.
We use Penn's Premium Cast leads at 100/115/120gr
and Hornady's 115gr XTPs and 115gr FMJs.
Bullseye or N320.
We carry what we load.
Hope this helps.
Been reading that hot ammo like Buffalo Bore and others
claiming to be 380+P, has blown extractors off of the
Walther PPKs pistols.
Our only G42 moved to Colorado and is the goto
"Downhill Racer" carry.