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Hunting
Long Range Hunting & Shooting
300 Norma Improved. Load testing, info, and builds
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<blockquote data-quote="CA48" data-source="post: 1744665" data-attributes="member: 21446"><p>I recently had a similar experience with my 338AM. Haven't shot it in a year or 2 and I keep some powder in an old fridge in the garage that I vented. That's where I happened to have my H50BMG, all same lot#. I live in a dry desert climate with huge temp swings through out the seasons. When I went to shoot my standard 142gr load velocity was 100 fps less than usual. I ended up bringing the charge up 3grs to 145gr now to get things back the way they were. Powder has a certain amount of moisture content and mine had no doubt dryed out somewhat. I'm bringing everything inside now where the temperature is more stable year round. </p><p></p><p>Excellent shooting and thanks for sharing. The Norma Mag IMP case is something special!</p></blockquote><p></p>
[QUOTE="CA48, post: 1744665, member: 21446"] I recently had a similar experience with my 338AM. Haven’t shot it in a year or 2 and I keep some powder in an old fridge in the garage that I vented. That’s where I happened to have my H50BMG, all same lot#. I live in a dry desert climate with huge temp swings through out the seasons. When I went to shoot my standard 142gr load velocity was 100 fps less than usual. I ended up bringing the charge up 3grs to 145gr now to get things back the way they were. Powder has a certain amount of moisture content and mine had no doubt dryed out somewhat. I’m bringing everything inside now where the temperature is more stable year round. Excellent shooting and thanks for sharing. The Norma Mag IMP case is something special! [/QUOTE]
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300 Norma Improved. Load testing, info, and builds
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