I have one on my 6mm BR Savage Benchrest.
Really good scope, great reticle good glass and they have among the widest +4 / -4 on the ocular focus. so far can't fault it. But it is BIG and it is HEAVY. Make sure you get the mounts with the scope IOR supply them with and at 40 mm not too much choice otherwise.
At a hundered yards if you take a shoot and see replacement target centre you can actually aim on the small diamond in the middle of it, the cross hairs are so fine they easily allow you to do this.
In fact I would look through one if you get the option as the cross hairs are really really fine.
Watch where you buy though as one of the European sites is far far cheaper than any of the UK ones by a lot. Well was the last time I looked. In fact I am looking to get one of their tactical style ones soon.