PHOENIX PHIL
AH ambassador
Thank you, really I will not throw or 400 meters but I'm always obsessed with having the most and the 300 Winchester Magnum sometimes seems obsolete outweighed by other 300s.
Óscar
I looked up some ballistics for you for the .300WM and .300RUM. If you were shooting a 200gr bullet, the difference in muzzle velocity will be about 200fps. The .300WM will be about 2900fps and the .300RUM will be 3100fps. If you were shooting a bullet with a BC of 0.45 and zero'd at 200 yards, the bullet drop below zero will be 21 inches and 19.3 inches for the .300WM and .300RUM respectively. 1.7 inches less at 400 yards is not what I'd call excessive. Now after 400 yards it obviously starts to get more serious the difference.
I think that gives you an idea that your .300WM is far from obsolete at least in reasonable ranges.