I actually have one of them, and 1k is probably the absolute limit on game. Short action pierce titanium, McMillan edge, rem sporter not fluted at 25 1/2". Chambered in 6.5 slr, but a guy could do a straight 260 or 260 ackley. I make my brass out of 308 lapua Palma, and step on it a tad. Rifle is 5lb 13oz before optics. The lightest, capable scope I chose was a mark ar in 4-12. The rifle killed an antelope at 922, a few deer closer, and one deer mid 8's. These light guns don't point well if you're on them at all, so I picked a smallish cartridge that can shoot well under it's own weight. I shot a lot last summer and fall, and the rifle will print groups at 1k in the 4-5" range for 3 shots. Sometimes better, but don't count on it. I actually shot it at our 1k benchrest match last August in the 11 lb class. Those were 5 shot groups and mid day conditions, the group's wet 11 and 13 if I remember correctly. What I was more interested in was where would I put the first sighter in the sighter period. To my delight, both relays it was well into the blue, the 13" middle area. Not easy by any means.
Tom