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I was visiting the GS Custom bullet website and it says: "You will find anomalies in our line of bullets such as the fact that we make two distinctly different 7 mm bullet sizes. If, for example you research the CIP specifications, you will find that 7 mm Remington Magnum and 7 x 57 are not the same size bore or groove. " I find it hard to doubt the word of the projectile specialists at GS Custom but I've never heard of they're being two different 7mm bore sizes. Is anyone else aware of this and if so how much difference is there? Regards RJW | ||
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eldeguello & ALF Thanks very much for your replies. I have a Rigby 275 (7x57) that was made around 1930. I've always used standard .284 cal bullets and it shoots fine. However, since this is of European make I think I'd better have the bore slugged to find out exactly what bore size I do have. Regards RJW | |||
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On 6.5mm bullets I have miked, I have found the following differences in their measured diameters: RWS 93gr .26250 Montero. | |||
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<eldeguello> |
RJW, If you find that your bore is indeed 7.25mm instead of 7.2136mm, what will you do next?? If as you say, .284" bullets are shooting well in your .275 Rigby, are you going to change bullet sizes? This is .28543307" vs .284". Wow!! What a difference!! I shoot .308" bullets in a .303 British and a 7.65mm Argentine Mauser with MOA accuracy!! "If it ain't broke, don't fix it!!" | ||
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