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Rifles, Reloading, Optics, Equipment
Reloading
160 Nos AB 7mm Rem Mag H1000
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<blockquote data-quote="Shortmagman" data-source="post: 1228570" data-attributes="member: 10723"><p>I have loaded for my 7mm Rem Mag for almost 20 years. When I first started I read an article in a gun mag that stated H1000 was one of the best powders, so I loaded H1000 under bullets from 140-175 grains. I used a Hodgdon manual(26th edition) as my guide. This was a manual published in the 1990's, and it gave 71.0 as a starting load for a 154-162 grain bullet and 72.5 grains as the max, so I loaded using this data. With the 175 's their starting load was 69.0. I shot using this data over a chronograph and found that I was getting over 3000ft/sec., with 72.0 grains. I also found that that the pressure was too high, so I starting looking for other data and found that Hodgdon published other data in their Annual Manual and was shocked to find that for a 160 Nosler Partition that 66 grains was the max load listed and that is true in their latest 2016 Annual Manual. I was starting 4-5 grains higher that the MAX!</p><p></p><p>What do you do with this conflicting data? Follow the advise that has been given--let you gun tell you. Use a chronograph, start low and work up. I found that with my gun a factory Ruger Mark II., 70 grains worked very well with the 160 Accubonds. The velocity I was able to get was just under 3000ft/sec., it was also very accurate.</p></blockquote><p></p>
[QUOTE="Shortmagman, post: 1228570, member: 10723"] I have loaded for my 7mm Rem Mag for almost 20 years. When I first started I read an article in a gun mag that stated H1000 was one of the best powders, so I loaded H1000 under bullets from 140-175 grains. I used a Hodgdon manual(26th edition) as my guide. This was a manual published in the 1990's, and it gave 71.0 as a starting load for a 154-162 grain bullet and 72.5 grains as the max, so I loaded using this data. With the 175 's their starting load was 69.0. I shot using this data over a chronograph and found that I was getting over 3000ft/sec., with 72.0 grains. I also found that that the pressure was too high, so I starting looking for other data and found that Hodgdon published other data in their Annual Manual and was shocked to find that for a 160 Nosler Partition that 66 grains was the max load listed and that is true in their latest 2016 Annual Manual. I was starting 4-5 grains higher that the MAX! What do you do with this conflicting data? Follow the advise that has been given--let you gun tell you. Use a chronograph, start low and work up. I found that with my gun a factory Ruger Mark II., 70 grains worked very well with the 160 Accubonds. The velocity I was able to get was just under 3000ft/sec., it was also very accurate. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
160 Nos AB 7mm Rem Mag H1000
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