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Rifles, Reloading, Optics, Equipment
Reloading
Powder selection for RUMS
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<blockquote data-quote="sambo3006" data-source="post: 112267" data-attributes="member: 2740"><p>I got some responses for powder selection for the 7RUM a week or so ago. I have a 338RUM also. Am I correct in assuming that slower powders would work better in the 7RUM than the 338RUM due to the smaller hole in a big case?</p><p>I loaded up 102gr of Retumbo behind a moly 225gr AB in my 338RUM and was hearing some powder crunching when I seated the bullet (OAL to fit in the mag). This load is below max and avg velocity was 3006 fps from a 26" barrel. I would like to hit 3100 fps but don't like crunching powder. I bought some H1000 which is a little faster and looks to generate the same pressure with a few grains less powder. I'm thinking that the H1000 would work better in the 338RUM and the Retumbo would work better in the 7RUM--I'm going to use 150 gr bullets. What say you?</p></blockquote><p></p>
[QUOTE="sambo3006, post: 112267, member: 2740"] I got some responses for powder selection for the 7RUM a week or so ago. I have a 338RUM also. Am I correct in assuming that slower powders would work better in the 7RUM than the 338RUM due to the smaller hole in a big case? I loaded up 102gr of Retumbo behind a moly 225gr AB in my 338RUM and was hearing some powder crunching when I seated the bullet (OAL to fit in the mag). This load is below max and avg velocity was 3006 fps from a 26" barrel. I would like to hit 3100 fps but don't like crunching powder. I bought some H1000 which is a little faster and looks to generate the same pressure with a few grains less powder. I'm thinking that the H1000 would work better in the 338RUM and the Retumbo would work better in the 7RUM--I'm going to use 150 gr bullets. What say you? [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Powder selection for RUMS
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