Those are made by Beartooth Bullets.
I have had excellent results with them. It seems that Marlins seem to want .460" bullets in their .45-70s, and most Ruger firearms tend to run a little big on bore size also, so I use .432" in both rifle and pistol loads.
The little 77/44, which is not particularly known as an accurate rifle, shoots darn good groups at 100 yards using the 300 grain WFN GC, hovering down around 1�". I use Lil gun as the propellent.
I hope to be smacking some deer in the next two weeks with that .45-70, I've already put meat in the freezer with the .44 mag.
