There ARE specific reasons why steep shoulders have accuracy advantages. I assumed if you were touting the advantage of short, fat cases so brashly, you'd know them. There ARE specific reasons why world records are shot with 6-7mm bores and medium capacity cases, again, attesting to these advantages, I assumed you'd be able to provide them. There ARE specific reasons the 6.5 & 6 creed and x47's dominate PRS standings, but again, doesn't seem like you can provide them. But you read a record book, so that's a start.