CHECK THIS OUT!!!!

I mounted a Burris 4.5-14X42 on my 257 Weatherby Mag. and sent an E-Mail to Burris telling them what caliber I was useing, along with the bullet I was shooting. Within ten minutes they sent methree pages of material documenting exackly where my bullet would hit on each mark . Also included was an eight-inch pieplate hit markfor shooting in the field compared to shooting at the range,along with a diagram showing me how my bullet flew compared to their scope reticle!!!!
(for example: my BDC is 200, 300, 425, 550, and 675yds for my gun)

AWSOME Customer service, and an AWSOME round to shoot if I do say so myself.
Useing this information, I shot my first Coues Whitetail at 386yds this past December here in Arizona

Hope this info helps