Yes, it has a custom barrel. Use is for hunting. So far it is shooting well, but I was wanting some good starting points for loads in this caliber in order to hopefully not have to peer into my reloading manuals and wonder which bullet/powder combination would be best to start with. There are literally hundreds of combinations (if not more), and I really want to get to the "best" load for my rifle as fast as I can.
Seems to me that there would be certain powders and bullets that are better than others for this caliber. And there are those that should just be avoided. The reloading manuals dont really tell you this in any detail.