Re: .45+P Ammo ?
What is the advantage of +P in .45acp? The standard heavy 230gn bullet at about 850fps is one of the best man stoppers there is. It already has more than enough power to make enhanced munitions like hollow points perform properly.
As has been said, to go +P will require stiffer spring and could possibly make the gun unreliable or worse, crack the frame.
If anyone was asking me, stick with standard loads in .45acp and leave the +P to do what it was supposed to do, help lesser calibres like .38s and 9mm catch up in terms of performance.