I thought I had read somewhere (possibly a review in a gun magazine) that +P ammo was not recommended by Taurus for these pistols. After reading that some people have had the pins that hold the inner frame break or come loose, I personally would not recommend using +P ammo.
All I could find from Taurus is the warning below:
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Taurus pistols were designed to use cartridges loaded to the limits shown
below. Other cartridges of various types or bullet weights may or may not
function acceptably; such ammunition should be thoroughly tested by the
user before relying on it. Because of the widely differing specifications of
such other ammunition, Taurus cannot be responsible for malfunctions
resulting from its use.
CALIBER.............BULLETWEIGHT ....... MUZZLEVELOCITY
.32 ACP.............. 71 GR FMP ............. 905 FPS
.380 ACP............. 95 GR FMJ ............. 1000 FPS
9MMPARA. ..........124 GR FMJ ............. 1225 FPS
.357 SIG .............125 GR FMJ ............ 1350 FPS
.40 S&W .............180 GR FMJ ............. 985 FPS
.45 ACP...............225 GR FMJ ............. 900 FPS
GR = grains
FMJ = Full metal jacketed bullet
FPS = Feet per second
“Plus-P’, “Plus-P-Plus” or other ultra or high velocity ammunition generates
pressures significantly in excess of the pressures associated with standard
ammunition. Such pressures may affect the useful life of the firearm or
exceed the margin of safety built into many pistols and could therefore be
DANGEROUS.