
... The Swaro 3-9X36 was born to be on a mountain rifle!
The VX-3 2.5-8 is a great scope that will hunt on an ultralight just fine, I've had more than one myself but they have since gone down the road.
Here's my personal take on the two scopes.
The Swaro 3-9X36 has the Leupold absolutely beat in brightness, edge to edge clarity and perceived magnification. No contest.
The Leupold has the better internal windage and elevation adjustments. They feel more positive and truth be told my Swarovski needs a shot to "settle-in" after making an adjustment, I have heard of others having the same issue.
To buy a used VX-3 on the EE is ridiculous as they command 85% of the new cost as a rule.
I've seen used AVs for around 100$ dollars more.
So, in a nutshell if you're twisting dials or need the BDC think Leupold, if you're just using the reticle then for the sake of god and all that's holy do not let the 200$ price difference between the VX-3 and the Swaro keep you from choosing the Z3!
My particular model pictured is an AV which is the predecessor to the current Z3 and about 15+ years old yet still blows away the VX-3 optically. I covet this scope like a hobo does a ham sammitch because of the TDS reticle which,sadly, the current Z3 dropped as an option.
As for the customer service between the two companies...I'd call it dead even.
A couple of years back it took a huge hit on the ocular lens and bent it from a hard fall on some loose scree. The scope never lost zero but it was an ugly ding and concerned me enough to have it looked at. I called Swarovski and told them I needed warranty work but wasn't the original owner and had no receipt. They sent me a pre-paid Fed-Ex box and off it went to New York. It was back three weeks later still in time for hunting season with a brand new ocular bell,a full internal service and new springs free of charge! If that doesn't qualify as top-notch warranty and customer service I don't know what does.
Here's a photo of the same scope mounted on a Rem 700 S/A clone for size reference...