I don't see the 350 having much if any impact on the 300 BLK except in cases where a straight waled cartridge is required by regulation.
Its success depends on how well the AR crowd can pick it up or whether manufactures like Ruger and Aero come out with semi auto versions. Unless it has a bunch of good subsonic loads it is not competitive, I counted 10 factory subsonic loads for the 300 BLK, maybe there is one or the 350? Yes the 350 has more energy but for the close in work they are intended for does it matter?
Th 350 looks like a relatively small niche cartridge to me. BTW what are the 3 states where it's not legal?
Its success depends on how well the AR crowd can pick it up or whether manufactures like Ruger and Aero come out with semi auto versions. Unless it has a bunch of good subsonic loads it is not competitive, I counted 10 factory subsonic loads for the 300 BLK, maybe there is one or the 350? Yes the 350 has more energy but for the close in work they are intended for does it matter?
Th 350 looks like a relatively small niche cartridge to me. BTW what are the 3 states where it's not legal?