Honestly I have not tried other buckings for bar10s but this is defienity way way better than the JG stock bucking. I did have to cut it to fit in my camber but don't forget to seal it w/Teflon. Oh don't cut it too much.
Range is definitely increased vs stock buckings along with accuracy. Your first and only bucking for vsr10/bar10s
Handles .28g perfectly and it improves .20g flight path
I didn't get a chance to measure the exact range incremental, but it is a significant increase. I believe my VSR-10 is now hitting close to 100 yards with 0.30g bb! A must have if you are looking to perfect your VSR10