I have a Hawkeye in 358 Winchester and it doesn't feed wide nose bullets either. My 1903A3 30-06 will pick up and feed the same 358 cartridge though. Seems like my hawkeye prefers long pointy ogives for it to feed correctly. Comparing the 2 receivers it looks like the Hawkeye is wider in comparison to the O3A3 for the slot where you push the cartridges in. Especially towards the front.