Someone should shoot their .308 at 300 thru a Garmin located at 300to see the final speed - and maybe a "Meat target" With heavy bones like 'Ribs' to see what the effect would be.
I agree with the 1800 fps limitation and a 308 180 grain bullet will drop below that velocity somewhere around 375 yards. That's not to say it won't kill an animal further out than that but the bullet performance will drop off significantly the slower it goes.
Hatcher did something similar with the 30-06 and discovered that bullets penetrated sand much better at 600 yds than they did at 200 yds. The reason for that is a faster moving bullet slams into the medium and compacts it, while the slower moving bullet just pushes through the medium, more like an arrow does.
Hatcher did something similar with the 30-06 and discovered that bullets penetrated sand much better at 600 yds than they did at 200 yds. The reason for that is a faster moving bullet slams into the medium and compacts it, while the slower moving bullet just pushes through the medium, more like an arrow does.