I admit that I am a nut for collecting 310 items; I just tried to win a large lot of about 30 dies on "that place' but was outbid darn it. That after I supposedly resolved to stop buying 310 dies but I actually greatly enjoy the anticipation of seeing what I get in a large unknown lot and I really enjoy cleaning them up in my hard working ultrasonic cleaner. Then comes the fun of assembling complete sets, hours of entertainment!
But I have been surprised by the number of dies for .300 H&H I seem to come across! I cannot believe it was ever that popular a caliber but I guess it makes sense that those that chose it would be reloaders and likely looking to load a more sedate round!