Hiya Guys, Can you correct me if I am wrong here, I have used the 87 grain V-Max bullet with varying successes. I find with my 20" 1 in 10 barrel that it will give me great accuracy at 100yds. The problem is as the bullet slows in flight. I use the following tools to check the ballistics. Stability calculator. >>> Stability calculator Bullet Length >>>>> Bullet lengths As the bullet slows down the bullet becomes unstable and by using Nightforce Exbal you can soon see that the 87grain V-Max pushed through my rifle with a 1 in 10 twist barrel at a muzzle velocity of 3125 will start to become unstable at approximately 2730fps. Whereas if I do the calcs on Berger 80 grain varmint they remain stable down to 1320fps and out to 700yds. What are your thoughts ??? If I want to go long range how accurate are my figures and can they be relied upon ???