Thanks that is kinda the number I was thinking would be min. If so then a 6.5x270wsm and a 270wsm should both be good for 700 yards given both retain 1000 lbs of KDP at that range.
I decided to use a 270wsm with 140gr accubonds. Iam going to push it at 3150fps. Now given thevelocity and Nosler published BC (496) and using hanloads.com ballistic calculator I should have 1969fps and KDE of 1205 at 700 yards. I think that even though the numbers are just computer numbers this should be ok for whitetails out to 700yrds, boar out to 300yrds and bear (southeastern black) out to 150 to 200yrds.
The rifle is going to be custom built 270wsm by Clay Spencer of Spencer Barrels. Here are the specs.
Action - Kelbly Atlas Repeater
Trigger - Shilen standard (set at 2lbs)
Recoil lug - Holland's
Barrel - Spencer 1-10 twist in (Shilen #6 LT varmint profile) 24"
Stock - MCM Tac Hunter w/ edge tech
Bottom Metal - HS detach mag
Base - Kelbly's
Rings - Kelbly's double screw
Scope - Leupold 6.5x20x40lr
I can't wait till this rifle is done.