With the Speer Gold Dot bullet the standard to the +P load
will all work , for example in a 9mm pistol.
Velocity is the main thing that controls how this bullet will
expand and penetrate. Too little and it will not expand, too much speed
can cause the bullet to over mushroom and not penetrate due
to the large surface area.
Some ammo is for the short barrels but most is for the standard barrel lengths
and you should have no problems in your calibers if you pick the correct box of ammo.
9mm 124gr example: short barrel ammo rated at 1150fps
and the standard box of +P for the longer barrels is at 1220 fps.
Any reason for the LE ammo ?
Good shooting.