I read my Hellcat manual and I didn't see a mention of +P loads.
So... I assume that means that this is rated only for normal P loads?
As side notes to keep in mind: You may void your factory warranty if using re-manufactured or reloaded ammunition.
Per Owners Manual:
"WHAT IS NOT COVERED BY THIS LIMITED WARRANTY?This Limited Warranty does not cover any damage or condition determined by Spring-field to be caused by: unauthorized repairs, disassembly, adjustments or modifications, carelessness, negligence, misuse, or unsafe handling, normal wear and tear, failure to properly or reasonably store, use, or maintain the product, hand-loaded, reloaded, re-manufactured, or defective ammunition."
Also, keep in mind if using higher rated ammunition than what's specified by manufacturer may put more stress on fire arm. But, going by above info posted earlier am not thinking that's a huge concern.
A good helpful article that may help you to understand some differences:
Is +P Ammo Safe To Use In My Gun? You might have heard a few things about +P ammo and it's relative safety or unsafety in firearms. Maybe you've been told you have to carry it in order for ammunition to be effective. We're going to clear those things up for you. Correct use of ammunition, of...
aliengearholsters.com
Other thing to consider if still unsure? Call Springfield Armory Customer Service. Great people to deal and work with!