Sweet!!!
Have you had any problems getting the Aguila/Centurion ammo to chamber and extract in your rifle? I tried it mine and it was rather difficult compared to the Remington ammo.
I have not.
Now......... I haven't used original Remington or Peters ammo. So I've nothing to compare it to. But I've never felt there was any undue effort either way (in or out) with the Aguila/Centurion stuff. I also haven't shot my 591M very much at all. It's about a 99% gun so I'd rather keep it that way. And from what little I did shoot it.........the 592M shot better.
The Aguila stuff was inaccurate as heck in my cousin's rifle when we tried it.
I've read other accounts echoing yours. Again.......... I have no other ammo to compare to. But I've no accuracy complaints in the 592M. To date, my best on a woodchuck is 280 lasered yards. Shot it after another guy said it was too far for his .22 Hornet.
I know the gun will do another 50 yards beyond that, or more under the right conditions.