Re: spin drift figures
yeah but it involves accounting for lunar drift, the rise and fall of the tides, what the weather is like in Asia at the time as well, and dont forget to account for the Coreolis effect.
But in a simple way, when running your JBM calculations, click the box that say Spin Drift and enter your info and blammmmm there you have it. But its a null and void. My spin drift at 1K for my 260 is like .19 mils...that may sound alot, but you cant read the wind to that accurate to blow your shoot due to spin drift.