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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7 mm SHERMAN SHORTMAG vs 7 SAUM
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<blockquote data-quote="elkaholic" data-source="post: 1105513" data-attributes="member: 13833"><p>Finally got a cool, cloudy day to shoot so I could tell what the real potential is. I loaded up several rounds of RL26 with the 180 Berger hybrids from 58 to 62 grains and seated everything at 2.925". I fired 4 rounds thru a sparkling clean barrel to get everything settled down first and then fired 3 shot groups. The lowest charge grouped just OK. The 59 and 60 gr. charges grouped right at .3". The 61 gr. charge opened up more like the 58 grainer, and the top charge of 62 grs. seemed to settle back in . The 62 grain charge was getting near max, but I felt I could have fired another grain without major case problems. That would put this little fire breather at a tad over 3100'! I may try that later. 62 grains clocked in at 3070' and grouped in 5/8", but I called the last shot as a pull Right! The first 2 shots cut one overlapping hole. I want to test this one again and see if there is another accuracy node this high? The next trip out, I will try playing with the seating depth which should tighten things up a little more. Here are a few pics of the groups......Rich</p><p>[ATTACH]50495[/ATTACH]</p><p></p><p>[ATTACH]50494[/ATTACH]</p><p></p><p>[ATTACH]50496[/ATTACH]</p></blockquote><p></p>
[QUOTE="elkaholic, post: 1105513, member: 13833"] Finally got a cool, cloudy day to shoot so I could tell what the real potential is. I loaded up several rounds of RL26 with the 180 Berger hybrids from 58 to 62 grains and seated everything at 2.925". I fired 4 rounds thru a sparkling clean barrel to get everything settled down first and then fired 3 shot groups. The lowest charge grouped just OK. The 59 and 60 gr. charges grouped right at .3". The 61 gr. charge opened up more like the 58 grainer, and the top charge of 62 grs. seemed to settle back in . The 62 grain charge was getting near max, but I felt I could have fired another grain without major case problems. That would put this little fire breather at a tad over 3100'! I may try that later. 62 grains clocked in at 3070' and grouped in 5/8", but I called the last shot as a pull Right! The first 2 shots cut one overlapping hole. I want to test this one again and see if there is another accuracy node this high? The next trip out, I will try playing with the seating depth which should tighten things up a little more. Here are a few pics of the groups......Rich [ATTACH]50495.vB[/ATTACH] [ATTACH]50494.vB[/ATTACH] [ATTACH]50496.vB[/ATTACH] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7 mm SHERMAN SHORTMAG vs 7 SAUM
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