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my new 7mmx300win
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<blockquote data-quote="mrb1982" data-source="post: 854050" data-attributes="member: 50419"><p>This round is a 300win mag case with the same shoulder angles, just necked down to 7mm. I really simple wildcat really. You are correct about the cases, but the 300win mag's dimensions allow for just a little bit more case capacity that seems to give those 180's just a hair of a boost. For instance I rund 71.5gr of H1000 for my 168 bergers, this is over max by hodgdon standards. I coudl probably only get another grain at the most of powder in that case. With the 7/300, with the same powder, I have read guys using 76-79gr of the same powder. The case is just big enough to give you that little extra boost, plus there have been pretty good reports of barrel life from this gun. Doesn't seem to be too wild of a barrel burner from what I am understanding. Hopefully this clarifies a few questions for you.</p></blockquote><p></p>
[QUOTE="mrb1982, post: 854050, member: 50419"] This round is a 300win mag case with the same shoulder angles, just necked down to 7mm. I really simple wildcat really. You are correct about the cases, but the 300win mag's dimensions allow for just a little bit more case capacity that seems to give those 180's just a hair of a boost. For instance I rund 71.5gr of H1000 for my 168 bergers, this is over max by hodgdon standards. I coudl probably only get another grain at the most of powder in that case. With the 7/300, with the same powder, I have read guys using 76-79gr of the same powder. The case is just big enough to give you that little extra boost, plus there have been pretty good reports of barrel life from this gun. Doesn't seem to be too wild of a barrel burner from what I am understanding. Hopefully this clarifies a few questions for you. [/QUOTE]
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my new 7mmx300win
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