FN TSR

I just got a FN TSR XP 24" barrel I have been playing with different factory load as I do not reload. I have been getting avg. groups about 1" at 100 yards. I have tried Black Hills and some hand loads that was bought at a local gun store. My question is does any one have any experince with this gun and what ammo does it like and avg groups. Thanks for any and all help.