Am I uninformed or behind the times? Does Sierra have them?

I was reading on some other forum that Sierra prefers to focus on accuracy and that manufacturing premium bonded bullets is not conducive to super accuracy.

I have not got a clue...

Whats the truth?

Done in Convention by the Unanimous Consent of the States present the Seventeenth Day of September in the Year of our Lord one thousand seven hundred and Eighty seven.