I haven't got to stretch mine out yet but yesterday it shot 54.5gn NSA slugs through a ragged hole at 40 yards about 910 fps. it shoots JSB pellets good also. I adjusted my trigger to be single stage 12oz with no over travel. Point of impact doesn't shift at all and the gun has a pin style pellet probe that is good for NSA dish base slugs.
There is some ping and the lower picatinny rail has some flex but overall I like it better than the impact, it's just not as easy to tune.
I wish the gun came with a foster fill instead of a fill probe.