A 3" auto drops off fps very fast from a 4 or 5" barrel.
It is almost impossible to get a +P speed out of a 3", even with reloads.
You also need a load that you can handle and shoot well, if possible.
I could reach +P in my 3.5" C9 but in a Kahr 3" I could only get
a 115 ball to 1168fps and a 124 ball up to 1118fps
I never got to test the 147 HST in this 3" pistol but it might be my choice
with the heavier bullet, that is slow any way.
Even with +P ammo, you will be actually shooting a "Standard" load......
out of a 3" barrel, from what I have learned in my test.
Good shooting.
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