Wildcats based on Beowulf case?

[M&P45]

I would imagine that the .50 Beowulf case capacity would make for some very hot long range wildcats. Has anyone done this? I was thinking that with the VLD 6.5mm bullets out there that this would be a natural. I know mag capacity would be limited but it would probably feed as well as the Beowulf out of 5.56 mags.

[tolson68]

The 50B case is about 0.13" longer than the 6.5 grendel with a rim diameter that is 0.005" wider. The base diameter of the 50B is 0.535" vs the 6.5Gs' 0.44". You could probably pick up a few grains more capacity, but a 6.5 BRX may be an easier way to go. The 6.5 BRX has a case capacity of around 43 grains (per www.bratrifles.com). I know Harrison at AR15Performance has done some work with this and probably has better performance numbers, but I would guess it will give you 100-150 fps over the 6.5G. Interesting idea about the 50B though.