Here's an idea of the .220 Howell's performance -- its trajectory with the 75-grain A-Max at 3,550 ft/sec muzzle velocity (red), compared with the trajectory of the .220 Swift 50-grain factory load at 3,780 ft/sec (green), with both sighted-in at 250 yards:

[Linked Image]

Please consider also the fact that the above .220 Howell load develops a lower peak pressure than the above .220 Swift load, therefore won't erode the barrel as soon as the .220 Swift load will. Also that both bullets reach the same down-range velocity at about 180-190 yards, and from there on out, the .220 Howell's 75-grain A-Max is increasingly faster than the Swift's 50-grain. (Both bullets are Hornadys, IIRC.)

"Good enough" isn't.

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