Fiocchi is a mite hotter than American ammo
older top brakes are not known for being strong
i would pay extra for a box of the weaker American first and
if all is well try other brands/powers.
i reload and find 650 fps to be vg accuracy and easy on the 3 i own
YMMV and good luck.....post pics please
the smaller calibers give me trouble
i guess i need not ask if you would like to help me load some 32acp.....