Len, I am a member of a group of about 8 long range hunters in PA. From summer temps of 80 F to winter temps of 30, the scope settings change enough that a second chart is needed. When we travel to Colorado and elevation changes from 600 ft to 9000 ft, the bullet flight changes by 3+ MOA at...
What ever the 300 Win mag can do, the 300 RUM can do a little better. Either one in a Rem Sendaro with muzzlebrake would be awsome. Hint: Whichever you decide on - do yourself a favor and first try the 210 Berger's. You won't believe how flat they fly. You will probably have to load them out...
I've been shooting long range for over 30 years and I found it to be informative and also confirming that much of what we have developed is very similar to what he is doing. I would warn you to watch all 3 DVD's and not at one setting. This year, our group shot antelope at 300, 650, and 700...