So my thought is using the 416 Barrett case and necking it up to .458. It should produce the about the same velocity as the Steyr with less powder. Also, by using the shorter case, should burn more efficiently. By using bigger diameter bullets, expansion ratio will go up so there will be a better selection of suitable powders. Seems like .458 VLD bullets are becoming available. Just trying to see if someone has done this to see what their results were.
Thanks
Thanks