The most accurate rifle I ever had was a Browning 1895 single shot in 6MM Rem. I used IMR-4350, Federal match primer, Remington case, and 87 grain Hornady (a varmint bullet), for everything including Michigan deer. It was an honest half-inch, five shot group at 100 yards. Killed deer like being struck by lightning. Bullet would shed the jacket, core would exit out the off side.
Sometimes you get what you pay for, sometimes you only pay more for what you get.
Three shots are not a "group"...they are a "few".
If the Bible is the literal, infallible, unerring word of God...where are all those witches I am supposed to kill?