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Rifles, Reloading, Optics, Equipment
7mm STW
Forming 7mm STW Brass
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<blockquote data-quote="JakeWes" data-source="post: 2989052" data-attributes="member: 127709"><p>There has been some commotion recently about the availability of 7mm stw brass. Most old timers still recommend using 8mm rem mag brass, which is great, but I'd argue that 8mm rem mag brass is harder to find than the stw. Others recommend 300 wby brass, which is another good option, but the overall length ends up a little short when fully formed.</p><p>For me, and others who've tried, I will attest to using 300 h&h and 375 h&h brass to easily form the stw. Both can be easily found online for less than half of Bertram or Nosler stw brass.</p><p>[ATTACH=full]526729[/ATTACH][ATTACH=full]526732[/ATTACH][ATTACH=full]526737[/ATTACH]</p><p>For the 300 h&h, a simple lube and resizing job in the stw FL die will get you to where you need to be. Then a fireforming charge will blow the taper out and mostly form the shoulder angle. A final full load will yield a perfect stw case.</p><p>For the 375 h&h you will need an extra die, for me it's the 8mm rem mag die. Lubing the case and running it in the 8mm rem mag FL die squeezes the neck down. If you run the case straight into the stw FL die you will crush the shoulder and neck. After the 8mm die, relube and run it into the stw die. Afterwards, prime and load a fireforming charge and repeat the steps mentioned above.</p><p></p><p>Cases from L to R: 375 h&h, resized in 8mm rem mag FL die, resized in 7mm stw FL die, 18gr of unique and a 154gr SP, 83gr of H1000 and a 140gr SP.</p><p>[ATTACH=full]526726[/ATTACH]</p></blockquote><p></p>
[QUOTE="JakeWes, post: 2989052, member: 127709"] There has been some commotion recently about the availability of 7mm stw brass. Most old timers still recommend using 8mm rem mag brass, which is great, but I'd argue that 8mm rem mag brass is harder to find than the stw. Others recommend 300 wby brass, which is another good option, but the overall length ends up a little short when fully formed. For me, and others who've tried, I will attest to using 300 h&h and 375 h&h brass to easily form the stw. Both can be easily found online for less than half of Bertram or Nosler stw brass. [ATTACH type="full" width="243px"]526729[/ATTACH][ATTACH type="full" width="243px"]526732[/ATTACH][ATTACH type="full" width="244px"]526737[/ATTACH] For the 300 h&h, a simple lube and resizing job in the stw FL die will get you to where you need to be. Then a fireforming charge will blow the taper out and mostly form the shoulder angle. A final full load will yield a perfect stw case. For the 375 h&h you will need an extra die, for me it's the 8mm rem mag die. Lubing the case and running it in the 8mm rem mag FL die squeezes the neck down. If you run the case straight into the stw FL die you will crush the shoulder and neck. After the 8mm die, relube and run it into the stw die. Afterwards, prime and load a fireforming charge and repeat the steps mentioned above. Cases from L to R: 375 h&h, resized in 8mm rem mag FL die, resized in 7mm stw FL die, 18gr of unique and a 154gr SP, 83gr of H1000 and a 140gr SP. [ATTACH type="full" width="489px"]526726[/ATTACH] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
7mm STW
Forming 7mm STW Brass
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