If it's made by Leupold it will hold up. By looking through the scope @ 100 yds you can easily determine the subtention of the reticle at that yardage. This is the optical distance from the actual crosshair, to the point (literally), where the crosshair thickens.
For example: My 6.5X20X40 subtends 1 1/2" @ 100 yds, 3" @ 200yds, 6" @ 300 yds etc.
All you need to do now, is go to Hornadys ballistic calculater, enter you information, and print out the "cheat sheet" that you can tape to your stock.
I've used this system for over 40 years very successfully on groundhogs to deer, and with an adjustable objective you can easily eliminate parralax. It also lets you purchase the best performing scope the budget allows for without compromise.
Good luck,I hope this helps out.
