Some of you are already involved in the cast bullet for the Whisper here:
http://castboolits.gunloads.com/showthread.php?t=102895
I have started a group buy for another cast bullet that would be awesome for 300WTF, BLK, Whisper, etc. This is a recreation of an out of production mold for a massive hollowpoint 30 cal bullet for varmint hunting. The lead and huge hollowpoint was designed (and proven) to reduce ricochets to almost nothing. It is super cool looking and I think it would be a great way to shoot a 300WTF at critters up close. Here is more background:
http://castboolits.gunloads.com/showthread.php?t=12467
Here is a picture:
Disclaimer: I plan on using this in my 300 Whisper bolt gun. It may or may not feed in an AR. The guy in the thread above has shot it semi auto in a Garand.
Here is the group buy, post up if you would be interested:
http://castboolits.gunloads.com/showthread.php?t=125239