I've decided I'm just going to buy an 8-twist 270 Win barrel that is throated appropriately, and swap it out on current 270. Maybe next spring.
Did a ballistic spreadsheet comparison b/t the ABLR's, 150gr./3100 fps v. 165gr./2950 fps.
Not much difference and the 150 shoots a little flatter.
The twist/RL-26 alone would allow the .270 Win to handle 150 AB/ABLR's at ~ 2900 fps.
Also did one on a fictitious 170 gr. NP at 2900 fps for the new cartridge.
It would be a beast, and don't think the .270 Win could push it fast enough to be useful, unless, as you mentioned, throated long.
This round seems to need really slick bullets to be useful, like the 175 gr. w/ BC(G1) in the .70's.
As mentioned, a .270 CM on steroids.
GR
