The Conquest is a great scope and at those distances you will not need the extra elevation adjustment of a 30mm tube. I have the 4.5-14 model and the glass is extremely clear with great resolution. It is also a fairly lightweight scope in comparison to the Leupolds I have which will make carrying your rig a little less cumbersome. What size varmints are you planning on shooting at various ranges? 14x might be more than you need for 95% of the shooting you'll do, but if you plan on shooting smaller animals out to 200 or 300 yds that extra magnification will come in real handy.