A lot depends on the pistol and bullet weight and types, (RN vs HP ) as well as OAL.
My pistols like w231 for light target.....
medium loads with CFE pistol powder.....
and depending on the bullet and how deep it is seated and it's OAL
for maximum loads my pistols like Unique, Blue Dot or BE-86 with the
JHP in 115, 124 and 147 grains for +P loads, that are accurate.
At the pressent I have 13 powders that I have used with my 9mm loads.
Out of all my pistols this is the best group that I have on paper
that was used in my testing fps in loads and just putting loads across the screen
and not really trying for accuracy, just not hitting my unit.
Target was at 20 feet and chrony at ten feet.
I will note, that this was before I had four verts in my neck fused.
My days of tight groups are over now, but just happy to still be able
to get out and pop primers and do some test now and then.