Honestly, variables have caused me to blow good shots, I just had it turned up too high. (antelope, in Mesquite brush @ 250 yds...and then suddenly at 40 yds...same with a few of deer in corn, thicker stuff & cutovers). My #1 tag filler still stands supreme above all others by a wide margin. A 308 carbine with a Redfield 4x scope. (she's retire now)
Today I do indeed have a variable 3.5 X 10 on my 7/08, but it only goes to 10X at the range. In the field it never goes above 5X, usually at 4X, Period.
That said , I have decades of misses and screw-ups to look back on & have learned from.....a newbie doesn't, and probably won't heed any warning otherwise.
Check out Schmalts and get a lower end Leupold 4X for a starter. It's not as much of a handicap to learn to hunt at 4X as it is to have gizmo's to play with in the excitement of a hunt and game is right in front of you..