(.577 member)
27/05/19 07:33 PM
Re: 8x57 Mauser Necked Down to 7mm

8x57IMP should come close to 2,900fps with a 180gr., however 2,950fps might not be possible with less than 26"bl. & running top pressures of 65,000psi. Just guessing.
My buddy is getting 3,020fps with 180's in his WSM Winchester, with Horn. Interlocks.

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