Just got one, went shooting with it and was disappointed that it was getting around 2.5 MOA 5 shot groups with PPU 69 grain match.
I didn't think anything was wrong, just that maybe the rifle wasn't as accurate as everyone described. But when I was packing up I realized the scope mount was rattling around and didn't stay in place! When I mounted it the night I never checked as I was in a hurry.
Turns out the SL8-4 short rail is a weaver rail, and not Picatinny! The item descriptions that say it comes with a pic rail are all wrong. I returned my scope mount (this was a Vortex cantilever which only works with Pic and not with Weaver) and swapped it for a pair of rings which works for both Weaver and Pic and torqued it to spec and now the scope is solid as a rock on there.
So if you get one, make sure not to buy a Pic rail mount, because it's gonna sit loose on there.