To the question on +P: the +P pressure designation is for a limit of pressure higher than the limit established by SAAMI for ammo produced for use in the US. The exact amount of overpressure (from standard) varies somewhat depending upon cartridge generally running 10%-18%.

The major issue with +P ammo is that driving the same bullet faster will generally increase expansion, but also reduce penetration.

Differences in recoil vary by weapon type. With service type weapons, the difference isn't really noticable. Smaller, lighter pistols will show more of a diffence.

While 147 gr ammo can be wonderfully accurate, it's not notable for terminal performance, delivering significantly less energy.