Coyote Hunter, try those calcs with bullets having .600 or better BC's in .264 and .308, and see what the difference is.....
While I don�t know of any bullets with a .600 BC that I would actually use while hunting, I would and do use 6.5mm 130g Scirocco II�s and since Scirocco II�s are available in .308�/180g as well, I use those for the calculations.
Once again using Nosler velocities and powder charges but with Scirocco II bullets (should be close enough for demonstration purposes):
.264�/130g Scirocco II, 2847fps, 43.5g powder, SD = .266, BC = .571
.308�/180g Scirocco II, 2638fps, 42.5g powder, SD = .271, BC = .520
Calculated Recoil
=================
12.60 fp = .264�/130g
17.35 fp = .308�/180g
Zero/Maximum Point Blank Range (6� diameter target)
==========================================
246 yds/290 yds= .264�/130g
226 yds/266 yds= .308�/180g
300 yard ballistics (10mph crosswind, Point Blank v1.8a)
==========================================
-3.90�, 2396fps, 1657fpe, 4.98� drift = .264�/130g
-6.54�, 2167fps, 1878fpe, 6.23� drift = .308�/180g
600 yard ballistics (10mph crosswind, Point Blank v1.8a)
==========================================
-61.69�, 1989fps, 1142fpe, 22.07� drift = .264�/130g
-79.19�, 1749fps, 1223fpe, 27.50� drift = .308�/180g
1000 yard ballistics (10mph crosswind, Point Blank v1.8a)
==========================================
-270.02�, 1520fps, 667fpe, 69.44� drift = .264�/130g
-349.23�, 1300fps, 675fpe, 88.82� drift = .308�/180g
1800fps retained velocity
===================
750 yards = .264�/130g
560 yards = .308�/180g
Significantly lower recoil and better ballistics than the .308 Win out to 1000 yards, including more than enough of the right stuff for the vast majority of hunting needs? The .260 Rem looks pretty good to me - guess that's why I built a .6.5-06AI on my non-magnum Interarms Mark X long action. Had it been a shorty a .260 Rem would have been my choice.
