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Rifles, Reloading, Optics, Equipment
7mm STW
7MM STW?
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<blockquote data-quote="arch408" data-source="post: 2040437" data-attributes="member: 59036"><p>If you look at Nosler load data, you will see that there is only one grain difference in the load data and the velocity is marginally different, almost identical. So, the only difference would be the absence of the belt and a 1/2 inch shorter case. The shorter fatter case supposedly is more consistent, but I have had no issues as long as I used magnum primers. You will have to use a magezine box with cut outs to accommodate the fatter case and you will probably need to alter the feed rails to insure reliable feeding. One advantage the 28 Nosler could have is you could lengthen the throat so you could seat the long-heavy bullets out further so you can take advantage of the "extra" 3gr. powder capacity, but both cartridges are so over bore that any gain will be minimal. Normally, a 4% increase of powder will giv you a 2% increase in velocity. in the 28 Nosler would have a 50-60 FPS advantage, but with those case capacities, they are so inefficient, so you might see a minimal gain. I would love to see a side to side comparison.</p></blockquote><p></p>
[QUOTE="arch408, post: 2040437, member: 59036"] If you look at Nosler load data, you will see that there is only one grain difference in the load data and the velocity is marginally different, almost identical. So, the only difference would be the absence of the belt and a 1/2 inch shorter case. The shorter fatter case supposedly is more consistent, but I have had no issues as long as I used magnum primers. You will have to use a magezine box with cut outs to accommodate the fatter case and you will probably need to alter the feed rails to insure reliable feeding. One advantage the 28 Nosler could have is you could lengthen the throat so you could seat the long-heavy bullets out further so you can take advantage of the "extra" 3gr. powder capacity, but both cartridges are so over bore that any gain will be minimal. Normally, a 4% increase of powder will giv you a 2% increase in velocity. in the 28 Nosler would have a 50-60 FPS advantage, but with those case capacities, they are so inefficient, so you might see a minimal gain. I would love to see a side to side comparison. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
7mm STW
7MM STW?
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