Home of the MIDI-15.  The true mid size Cartidge for the AR15, the 30-30 Whyat is a rendition of the 7.5x45 but redesigned to use a 30-30 Winchester profile and 30 Remington brass trimmed to 45mm [ 1.77"] Tests so far have yielded 2700 fps with 135 gr HPBT bullets in a 22" Single shot test platorm and 140gr FMJ at 2450 fps from a 16" AR.