I'm beginning load work up with a friend's .270 Wby. I have 130 and 150 NPT's, 130 and 140 NAB's, 150 ABLR's to try.
I ran them all thru the Hornady Ballistics Calculator using max book speed. At 600 yds, there was only an inch or so separating all but the 150 NPT, it dropped 5" more than the rest.
So, unless someone is shooting at extreme ranges, Partitions hold their own pretty well, according to Hornady data.
