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Interestingly, Woodleigh's catalog states that 2250 fps is attainable with their 250 gr bullet out of the 8x57JS.

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Mighty interesting, indeed!

I had about a year ago (or thereabouts) a discussion on this forum re. reboring an old Win m/ 1895 and asked for caliber suggestions. One caliber then suggested was the "new" German 8,5x63R (.338") which is based on the 7x65R case. Apparently, one reason for the development of this caliber is the fact that there are few heavier than 224grs slugs available in 8mm (.323") and higher sectional density was desired. Which is true, but if there is one good bullet and it's readily available, that's plenty.

I'd be very keen to try out this bullet in 8,2x53R. The CIP pressure for the x53mm is quite a bit lower than that of the rimmed Mauser's. Sako, however, loads the x53mm equally hot to the rimless Mauser and hotter than the rimmed Mauser. The CIP pressure of the x53R is a tad higher than that of the rimmed 8mm Mauser.

I have load data for the 220grs bullet - that ought to achieve 2,200fps without any pressure risk or problems.

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A.k.a. Bwana One-Shot

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