Thread: Model 7 7mm08 150gn eldx load development

Originally Posted by dannyb

Interesting comparison with my mates 15" 308 today he's shooting 155gn amax with a mv of 2700fps
The bc on the 150gn eldx us substantially better and the 708 has more velocity and ft/lbs at 500 yards than the 308 even though the 708 has a lower mv

Very common almost all heavy high BC projectiles will overtake lighter lower BC projectiles eventually when fired from them similar sized case. The bigger calibre are usually a little more efficient in terms of muzzle energy but often lose out on the open of high BC projectiles.

Hence why the factory precision hunter 7mm08 holds 1000ftlbs to 700 yard while a 270 only holds it to 750 yards at the cost of significantly more recoil and 200fps higher muzzle velocity. At extended range BC is fairly significant for retaining energy . Obviously need a balance it with velocity to allow the projectile to expand and do it job. Should have a bloody good load there mate!