Since the boxes of shells that I got are Remington, I feel pretty comfortable that they will shoot okay out of my double (Remington in Remington). Frankly, I'm excited about shooting a 405 gr. out of it. That's the most powerful factory load that I was able to find. I have great expectations! Back to the jack screw - is there some kind of little tool that I use to adjust the wheel? If so, does anybody know where I can locate one. Thanks, Christopher