odd topic - it all depends upon a target and required accuracy.
a lot of military rifles had 4x fixed scopes and it was just fine, considering you hit a full size human or torso target, somewhere.
if you intent to shoot through the center of the dime at 100yds - then you need at least 15x magnification to just see it properly, and, most importantly, to see the bullet holes of your impacts.
to hit a 1" red center in a splash target - a 10x would do. to ring a steel place i can do just fine with a 3x prism - but to hit a 1" target bullseye with it is a challenge.
and never take anything for granted - get the scope and test it yourself, to find out if it works for you or not. there is a ton of great glass in <$500 range and ton of shitty glass in $1000 range.