Ahh, but we need to specify Nitro Hevi-shot here. I thought that I could eek by using Remington Hevi-shot with the Rhino choke. I found out differently last night at the bench. I had the reccomended Rhino for my BPS, the .670 and another Rhino in .660 at my disposal.

The Remington Hevi-shot worked well, but no where near stellar. Insert one matched Nitro brand Hevi-shot load for the specific Rhino choke and WOW! Talk about night and day. Bird hung up at 45 yards? Not gunna to be a problem.