I have both types on various handguns and a 5 min dot is okay out to 150 yards (it will cover 7-1/2" of target at that range) on whities. UltraDot makes a red dot with 2,4,6 and 8 min variable dot sizes. The thing I don't like about some red dots is the knob on the left side to control brightness or dot size as I shoot with both eyes open and that knob is just in the way. My dots all have that knob on top, out of the way. I like a fixed 2x scope for all-around use as it is lighter and smaller than a variable, although I have 4x on some too. Low powered scopes allow for shooting with both eyes open like a dot so you can get on target quicker. The Leupy variable is a nice scope but it is pretty big and heavy for a revolver IMO, which I like to keep light and compact for carry.
Enjoy your new addiction and welcome aboard.
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Rod, too.
Know Guns, Know Peace, Know Safety
No Guns, No Peace, No Safety