Double Tap ,Winchester WinClean, leadless primer ammo,Europeon ammo. and some Asian ammo are all known to have hard primers or are tough for fit and function in the smaller self defense pistols.
Compact and sub-compact pistols are more finicky and fussy about ammunition diet. Engineering them to function with all types can be a very hard thing to accomplish.This problem seems to plague even some of the better designed pistols. The physics are hard to get just right. This has been documented by the gun writers and instructors.
Colt's Officer's Model, Para Ordanance sub compacts, and similar sized autos have a record for doing this whether DA or SA models. Granted some smalller semi-autos may feed more types better, but this endemic of the type.
So combine everything and one has a problem that can be solve by staying with what ammo they know works with this pistol already. Or they can experiment with other brands and types of ammo to get ones that fit and function properly.
Foot pounds of energy are not the most important factor in stopping an agressor. It helps to a certian extent. There are other variables as well.
Ammo fit and function 100% in the pistol are totally necessary for a defense gun. Good accuracy second.All other factors are in this ballpark area.
+P,+P+, or ammo that is in that ballpark performance wise is nice. There are documented sources that show that these have very good track records in real world stopping records. The difference between these and standard pressure loads stopping track records though , is not as great as one may led to believe.
So pick what you will to defend ones self and others, but realize that high velocity or standard velocity rounds can and do get the job done when called upon.
One last item I almost forgot. High impulse rounds were designed for Colt Commander length barrels and longer ones for the most part. Ammo makers took things in that direction. There may be exceptions to any of this. These are things that need to be considered.