quattro.pilot
Member
- Location
- Leduc, Alberta
well I can tell you a Berger 195gr from the 280 Ackley will hit 2700 fps 24" barrel no problem.
With a G7 BC of .380, the 195gr Berger @ 2700 fps will retain 2200 fps impact speed to 470 yards (that is what a 30-30 170gr does at the muzzle). From a 200y zero, drop at 1000 yards is only 25.8moa.....1000 yard velocity is 1700 fps / 1255 ft lbs...wind deflection per mph crosswind is 5.1"
Let's compare that to a good 300 Win Mag factory load, the 200gr Hornady ELDx Precision Hunter [2200 fps @ 480y...25.5moa drop...1595 fps impact 1000 yards...1125 ft-lbs energy....6.3" wind deflection]
So in a nutshell, the heavy 280AI, mirrors the trajectory of the 300 Win Mag, gives about 10% more energy on target at long range, has 20% less wind deflection....and oh, about 25% less recoil in the same weight rifle
A 6.8 Western, with a similar weight bullet will be right in the same ballpark to the 280AI, since case capacity is just a smidge more than the Ackley. With a 7.5 twist barrel and a SAAMI 2.955" OAL, the 6.8 isn't hampered loading a potential bullet in the 190-200gr class. It will certainly outperform a 300 Win Mag, let alone a 30-30 Winchester
I really wish I'd been more aware of .280AI when I was first rifle shopping years ago. If only I knew then what I know now haha....




















































