New reloader pressure sign?


Well-Known Member
Hi lads

New to reloading and just after some experienced eyes please.

Loaded up some 223 using RS50 in various grain weights. Max load was 26.5gr according to RS load data.

I worked up in charge weights and my newbie is thinking these primers are showing signs of cratering?? Bolt lift was fine and not getting sticky or harder but obviously i don't want to push past pressure signs.
What do you guys I correct in thinking the start of pressure signs?

Load data info -

Lapua match brass
Federal small rifle primers
25.6gr RS50
STMK 69gr seated 10 thou off lands

Cheers lads