+P amunition can be used in most modern handguns. If you have an older gun consult a gunsmith prior to using it. +P is primarily used for self defense ammunition. It has higher pressures and faster bullet speeds. Sometimes that does not translate to better penetration.
Any .38 ammo can be safly fired in a .357. +P .38 loads do not exceed .357 pressures.
You must contact COLT for the best answer.
No. Dimension-wise, they are similar, but there are differences in neck angles and case thickness. .223 Remington ammo can be fired in a 5.56 chamber, but 5.56 ammo should never be fired through a .223 Remington chamber.
If you mean +P ammo the answer is no. It is rated for standard pressure ammo only.
any 45 cal ammo will work in a 45 cal pistol
Simple answer, No.
The Springfield Armory 1911A1 manual states that +P ammunition should only be used in firearms with barrels of at least 5".
yes, but better to use standard ammo. +P ammo shakes the pistol a lot.
Pressure
I don't think there is any +P ammo made for the 32 auto ????????
If you mean can you fire non plus P ammo in a gun rated for plus P, yes, you can safely do that as long as it is the correct caliber.
yes, but don't shoot the P ammo too often