After testing several bullets of either match or hunting style, BTO length is far more critical than weight variance.
I never found weight variance up to .5gr+/- to alter groups at 800mtrs, this was the furthest I could comfortably test at home, any further required a large uphill jump in elevation.
I also found the tip made very little difference at that range, it just didn't matter how ugly they were, they grouped well.
I have to say that I still sort by BTO, still tip my bullets and DO weigh my bullets out of curiosity, but unless there is a HUGE difference, I don't take much notice.
Cheers.