Lots of variables to consider.
Moisture content
Thickness
Grade of filler.. fireproof drywall, waterproof, ....
Spacing between sheets
Age.. as drywall gets hard and brittle as it ages
........
Lots of variables to consider.
“Moisture content, Thickness, Grade of filler, fireproof drywall, waterproof, Spacing between sheets (wall thickness), Age, (drywall gets hard and brittle as it ages)”.......... etc.
You left off one important factor, the cartridge size meaning a .22 short, .22 long, .22 long rifle, etc. There are numerous brands and size of powder charges. Lots of stuff to consider, yes!
Angle too.
90* on is nothing like 45* or an even shallower angle.