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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7LRM vs. 7-375
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<blockquote data-quote="MudRunner2005" data-source="post: 916183" data-attributes="member: 12995"><p>Actually loading with a belted cartridge vs non-belted is no different. They're the exact same to load for. If your smith is good at what he does, then he will know that ordering tight-chamber reamers are better than ordering standard dimension reamers. Tight-chamber reamers have very tight tolerances, and your brass doesn't swell very much at all. You can neck-size about 3 times and then have to run them through a FL sizing die the 4th or 5th time. With a tight-chamber for a belted caliber, you don't have to worry about the notorious "case-head speration" anywhere near as bad, because the chamber is tight, and not generous, therefore the brass doesn't swell (expand) as much around the belt. Belted calibers and rimmed calibers headspace off the belt and rim, whereas non-belted headspace off the cartridge shoulder. And with today's awesome advancements in good quality brass, like Lapua, Norma/Nosler, etc... You can get pretty good life out of belted cartridges without any issues.</p><p> </p><p>So, if I were in your shoes, I would definitely take another look into the 7mm STW. It has good brass availability (8mm RemMag brass can be necked down to 7mm in 1 simple step), good velocity, efficient design, and I have gotten 5-6 firings out of some of my brass, maybe more than that on some, if I load mild loads.</p><p> </p><p>If you have any questions, feel free to come join us over in the STW section, and ask as many questions as you'd like. They're very friendly and helpful over there in the brotherhood.</p><p> </p><p><a href="http://www.longrangehunting.com/forums/f126/" target="_blank">7mm STW - Long Range Hunting Online Magazine</a></p></blockquote><p></p>
[QUOTE="MudRunner2005, post: 916183, member: 12995"] Actually loading with a belted cartridge vs non-belted is no different. They're the exact same to load for. If your smith is good at what he does, then he will know that ordering tight-chamber reamers are better than ordering standard dimension reamers. Tight-chamber reamers have very tight tolerances, and your brass doesn't swell very much at all. You can neck-size about 3 times and then have to run them through a FL sizing die the 4th or 5th time. With a tight-chamber for a belted caliber, you don't have to worry about the notorious "case-head speration" anywhere near as bad, because the chamber is tight, and not generous, therefore the brass doesn't swell (expand) as much around the belt. Belted calibers and rimmed calibers headspace off the belt and rim, whereas non-belted headspace off the cartridge shoulder. And with today's awesome advancements in good quality brass, like Lapua, Norma/Nosler, etc... You can get pretty good life out of belted cartridges without any issues. So, if I were in your shoes, I would definitely take another look into the 7mm STW. It has good brass availability (8mm RemMag brass can be necked down to 7mm in 1 simple step), good velocity, efficient design, and I have gotten 5-6 firings out of some of my brass, maybe more than that on some, if I load mild loads. If you have any questions, feel free to come join us over in the STW section, and ask as many questions as you'd like. They're very friendly and helpful over there in the brotherhood. [url=http://www.longrangehunting.com/forums/f126/]7mm STW - Long Range Hunting Online Magazine[/url] [/QUOTE]
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7LRM vs. 7-375
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