Quote:
Originally Posted by Kurt505
For a fair comparison I compared a 280rem with a 160gr partition to a 30-06 with a 165gr partition, both being same size case and within 5gr of projectile weight. The 30-06 starts out at 2800fps, at 500yds it is going 1799fps. 280rem starts out at 2775fps, at 500yds it's going 1901fps. At muzzle the 30-06 has 2872ft/lbs energy, at 500yds it has 1186ft/lbs of energy. 280rem at muzzle has 2735ft/lbs energy, at 500yds it has 1284ft/lbs of energy, with just over 2" less drop and less recoil.
I did an apples to apples with a 308 based case between a 30cal and a 6.5 cal, 6.5cal wins, this is an apples to apples comparison with a 06 based case between a 30cal and a 7mm.
Unless you purposely stack the odds, the 6.5 and 7's flat out out perform the 30cal bullets with less recoil.
Will the 30cal get the job done? Most certainly. But there are more efficient options.
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A 30-06 can start a 165 at 3k fps. Mine do it easily with book loads of 4064 or RE22 so why not do your comparison without a reduced load? Oh right, because the old war horse looks worse the way you have it.
You seem to be forgetting or purposely underestimating the effect of frontal diameter on terminal performance.