As a former bullet maker of true Benchrest bullets (Benchrest with a capital 'B'
) , M.D.'s comments are pretty much spot on.
With my flat based bullets and using different point up dies to produce shank diameters of .3083 to .3090 and pressure ring diameters from .3085 to .3093, you couldn't shoot the difference, no matter what type of crown was on the barrel.....provided it was a perfectly indicated crown and the edge was carefully chamfered at 60 degrees.
That says less about the crown and more about the bullets flat base...specifically the pressure ring...being the biggest equalizer.
Many of the 6 PPC Group shooters have drifted to using a short boat tailed bullet lately. Keeping those guns in tune throughout the days temp and humidity changes is a challenge and many feel the short boat tail widens that tune window a smidgen.
In a hunting or casual target situation, your barrel will tell you what it likes.
Good shootin'. -Al
