The main difference is the interface and functionality, particularly if you want to connect to a phone or PC. Otherwise the basic functionality is pretty much the same. I got the Sporter because I didn't think the extra cost of the V3 was justified personally.I'm looking at the sporter also but have a question-
What is the difference between this and the V3 at $380?
Is it worth the additional 200 bucks or should I just get a sporter?
Shooting a braked 300rum. Thanks for any input!