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Rifles, Reloading, Optics, Equipment
Reloading
VV N-170 or N-560 in 7mm Dakota & 7mm Rem Mag?
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<blockquote data-quote="brianwinzor" data-source="post: 199408" data-attributes="member: 1067"><p>I was able to get Vihtavouri N570 in October last year here in Oz, and from my experience it would be very unusual if it was available here before it was available in the US.</p><p></p><p>I read several reports that it was supposed to be slower burning than Viht N170, but my early testing of N570 in a 257W suggests it to be slightly faster burning than N170. I have listed my chrono data below:</p><p>257W - 100 grain Nosler BT. (Rem 700, Krieger 26 inch 7 twist barrel)</p><p>73.0 grains - Viht N570 - 3535 fps</p><p>74.0 grains - Viht N570 - 3586 fps (Max)</p><p>75.0 grains - AR2225 - 3487 </p><p>76.0 grains - AR2225 - 3561 (Max)</p><p>82.0 grains - Hodgdon 870 - 3553 (Max)</p><p></p><p>ADI AR 2225 is rebadged and sold as HRetumbo in the US, but I have found in several other cases that it appears to be about 1.0 grain faster burning than VihtN170. </p><p></p><p>Hope that the above is of some interest. Brian.</p></blockquote><p></p>
[QUOTE="brianwinzor, post: 199408, member: 1067"] I was able to get Vihtavouri N570 in October last year here in Oz, and from my experience it would be very unusual if it was available here before it was available in the US. I read several reports that it was supposed to be slower burning than Viht N170, but my early testing of N570 in a 257W suggests it to be slightly faster burning than N170. I have listed my chrono data below: 257W - 100 grain Nosler BT. (Rem 700, Krieger 26 inch 7 twist barrel) 73.0 grains - Viht N570 - 3535 fps 74.0 grains - Viht N570 - 3586 fps (Max) 75.0 grains - AR2225 - 3487 76.0 grains - AR2225 - 3561 (Max) 82.0 grains - Hodgdon 870 - 3553 (Max) ADI AR 2225 is rebadged and sold as HRetumbo in the US, but I have found in several other cases that it appears to be about 1.0 grain faster burning than VihtN170. Hope that the above is of some interest. Brian. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
VV N-170 or N-560 in 7mm Dakota & 7mm Rem Mag?
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