Interesting to speculate but the 284 Win offers a great deal with less fire and recoil and about 20% less powder.
Good point - I hadn't thought of the .284 Win. Either that or the 7mm-08 could get popular for short action precision rifles.
I guess I'm comparing for long actions - there when you compare the 7mm Rem Mag to the .300 Win Mag, the BC of the bullets available the 7mm wins in most product lines when compared to each other.
For example,
Hornady ELD-Match. I'll compare bullets of the same product line...
6.5mm best BC is 147 gr at .697 (G1)
7mm best BC is 180 gr at
.796 (G1)
30 cal best BC is 225 gr at .777 (G1)
Another example,
Sierra Matchkings.
6.5mm best BC is 142 gr at .626 (G1)
7mm best BC is 197 gr at
.780 (G1)
30 cal best BC is 240 gr at .711 (G1)
Yet another example, the
Barnes Match Burners
6.5mm best BC is 140 gr at .586 (G1)
7mm best BC is 171 gr at
.645 (G1)
30 cal best BC is 175 gr at .521 (G1)
Now I'll admit there are exceptions such as the
Nosler Accubond Long Range. But the majority of bullets available, the 7mm beats .30 cal and 6.5.
6.5mm best BC is 142 gr at .719 (G1)
7mm best BC is 175 gr at .672 (G1)
30 cal best BC is 210 gr at
.730 (G1)