Just received these two days ago for use in my 45/70 Magnum Research BFR revolver. Loaded up 100 of these with IMR 3031 and Trail Boss in Starline cases and went to the range today, they shoot beautiful right to the point of aim and are very accurate. I like that they come with two crimp grooves in them as I also have the 450 Marlin cylinder for this gun, they will be the next ones I load. Product arrived in perfect shape as usual with Rim Rocks great packaging. Will be ordering more of these again.