As far as the DA and IVI ammo goes, that stuff was made to cycle through Sterling SMG's. It really is hot stuff for a pistol.
If you want to shoot this in your high power you might want to consider putting in a stronger recoil spring; especially if your existing spring is as old as the gun itself.
Just my opinion
thanks for the pics fellas,didn't know that many variations to holster an hp
thanks Grantr I also see the ring on the lanyard is a handy feature. I always thought the side arm was only worn at the hip
A very common carry method for for the pistol in Afghanistan was in one of the chest pockets of the tactical vest .... state-of-the-art gear with the same old Inglis ....