Randy,
If it satisfies you with the way it shoots and you are a grain under that's what matters. A 140 @ 3300 in a 280 AI anyone who owns one would be real impressed with that velocity especially if accuracy was good.
The 280AI may in some rifles reach that number with a 140 but the potential consequences are more than I want to deal with. Barrels are pretty expensive.
The difference between 3300 and 3100fps using a Berger 140 VLD @500 using a 300 yard -0- is 3 clicks. The diff in energy is 230 ft lb. 1769/1539. Doubt any animal would know the difference.
Dave
