Get the Smith sight. If you are going to hunt, you will be making a serious mistake if you overlook the 403169. Your 18 twist will really make it come alive. The Saeco 740 and the 640 both fall far short of either of the Lyman flatnosed bullets for hunting. I have and have shot each of these different bullets, and you will be TIME and money ahead to get the two Lyman molds and forget the rest if you plan to hunt.
