I have ALL the VXII LR Duplex scopes all the way from the 2-7 on up to the 6-18. Of them all my favorite is the 2-7 and the 6-18.
220 Swift wears the 6-18x40 A/O with the LRV reticle
260 Rem 700 BDL wears the 4-12x40 A/O LR Duplex
270 Win 700 BDL wears the 3-9x50 LR duplex,
SBE slug barrel wears the 3-9x40 LR duplex
.50 cal T/C Omega wears the 2-7 LR Duplex.
I've found that the Leupold LR Duplex is better for quick aquisition and precision. The use of a small dot, much like a mil dot type on the bottom vertical post is easy to see even in low light and can be indexed to use the top / middle / or bottom of the dot. The LRV uses hash lines much the same as the Burris Ballistic Plex and does not obstruct the picture at high magnification. The only reason I'd go to Burris over the Leupold is for the illuminated version for low light long range applications....but I went to a Leupold Mark 4 4.5-14x50 LR/T M1 illuminated TMR for that. The advantage of the Leupold coatings, accessories, light weight and eye relief not to mention the Canadian service center wins my dollar! If you load your own ammo, you can match to the reticle by volocity and bullet weight.