What I mean, is with the bullets they choose for their heavier loadings.
My two examples are from 303 Bristish and 270 winchester. Both heavy loads (180 grain and 150 grain, respectively) use a soft point round nose bullet.
These bullets have TERRIBLE ballistic coefficients, and they lose so much velocity/energy compared to others. Due to this, the lighter bullets seem like a better choice for all but the closest of ranges.
For the 270 winchester, at 200 yards the Power Shok round nose bullet offers only 2166 fps, and at 400 yards 1606, meanwhile the Vital shok load with a Nosler Partition (the worst BC bullet of the vital shok line) is doing 2446 and 2093fps respectively. And thats with identical muzzle velocities.
So what gives? At least with the 303, I can rationalize that its intended for a short-range heavy brush round, but I dont consider the 270 to be a short range bush gun with any load - its meant to reach out and touch something.
Also I should note that the winchester Super X does not have this problem. Their 150 grain 270 load gives 2336 and 1879fps respectively. Not Vital shok speeds, but for the price difference I dont expect that.
Finally! With the 303 winchester super X load my 303 180 grain bullets are faster at 400 yards than the 150 270 federal load, due to that terrible BC.... Thats just not right!
My two examples are from 303 Bristish and 270 winchester. Both heavy loads (180 grain and 150 grain, respectively) use a soft point round nose bullet.
These bullets have TERRIBLE ballistic coefficients, and they lose so much velocity/energy compared to others. Due to this, the lighter bullets seem like a better choice for all but the closest of ranges.
For the 270 winchester, at 200 yards the Power Shok round nose bullet offers only 2166 fps, and at 400 yards 1606, meanwhile the Vital shok load with a Nosler Partition (the worst BC bullet of the vital shok line) is doing 2446 and 2093fps respectively. And thats with identical muzzle velocities.
So what gives? At least with the 303, I can rationalize that its intended for a short-range heavy brush round, but I dont consider the 270 to be a short range bush gun with any load - its meant to reach out and touch something.
Also I should note that the winchester Super X does not have this problem. Their 150 grain 270 load gives 2336 and 1879fps respectively. Not Vital shok speeds, but for the price difference I dont expect that.
Finally! With the 303 winchester super X load my 303 180 grain bullets are faster at 400 yards than the 150 270 federal load, due to that terrible BC.... Thats just not right!