My 284 will push the 180gr hybrids at 2880 fps easily on RS60. 52 grains will take it to 2900 fps. So my reakoning 7mm saum isn't as efficient as the 284.
56.7grs of N165 behind the hybrid in my 284 gives 2820fps.the saum needs 60.5grs for an extra 50 fps advantage
7mm rsaum
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All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
Re: 7mm rsaum
You can push the SAUM a fair bit quicker however I never saw any real accuracy advantage.
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Berger
Re: 7mm rsaum
Yeah I've done the ballistic calculator figures and the advantage is only a small margin.an extra 80 fps above the 284 velocities is only 2 inches less drift at 1000yds in a 10 mph full value wind.the 7mm wsm is about the same advantage over the saum at 3060 fps.thats if all are running from 2880 fps with the 284. then 2950 with the saum then 3060 with the wsm
Re: 7mm rsaum
31" these days
Re: 7mm rsaum
Let me know how it goes, do you have a Chrono to test with?
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