I purchased a new in the box Winchester Apex .50calfrom a co-worker a couple months ago. I mounted a 3-9X40 Bushnell Elite 3200 on it.
I finally had a chance to shoot it two weeks ago after bore sighting.
I started out with 85gr of Triple-7 ffg on the first 6 shots then bumped it up to 90gr for the last 4 shots. I was using the Triple-7 primers and Fusion 260gr sabots. The last three shots were in an area the size of the bottom of a pop can at 50yds at the point of aim.
Now that the scope is sighted I am looking forward to fine tuning the loads and seeing how it shoots at 75-100 yds.
Fun gun to shoot.

Copperdog