There are alot more reasons why that have accuracy "issues" than the Bullet failing to obturate "sett up" into the Bore,but its deffinatly the biggest one.Three of my Bullet molds try to imitate a sphere "conical ball" and none are as accurate as a round ball thats over bore diameter.Still they are fun to shoot and easy to reload for once you get all the bits.
The reason I offered my suggestion of going back to basics with the 45/70 was that I thought that without the wad stack,grease cookie,sheeps wool etc in my 577/450 that it just wouldn't shoot.I knew no better at the time.It shoots well enough with the basic load and the biggest aid to accuracy was finding a Sunderland sight,a windage and elevation adjustable target sight for it.That did 10X more for the accuracy than any load development.
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