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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm RM to 7mm-300 WM AI questions.
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<blockquote data-quote="Jud96" data-source="post: 924729" data-attributes="member: 69478"><p>Why would you go through all that money and work for maybe 100 fps? I'd just rebarrel and keep it a 7mm RemMag, especially if you have all the dies and brass for it.</p><p></p><p>1) You will need a PTG 7mm-300 WM AI reamer</p><p></p><p>2) Barrel life will decrease because you are overboring the cartridge even more than it already was. The .300WM case is slightly larger than the 7mmRM case.</p><p></p><p>3) 7mm STW brass is everywhere if you know what to look for. You can find Nosler 8mm RemMag brass everywhere right now, and all you have to do is run it through a 7mm STW full-length sizing die to make 7mm STW brass. No trimming, no headache, no issues. Just size and load. and you have instant 7mm STW ammo.</p><p></p><p>I recommend the jump from 7mm RM to 7mm STW. That's a much bigger jump than going to the 7-300 WM.</p><p></p><p>If you really want to step it up, call Brad Stair in Utah, and have him build you a 7mm STW Tejas. You can shoot regular 7mm STW brass and ammo in it to fire-form your cases</p><p></p><p></p><p></p><p>+1 the 7mm-300 Winchester doesn't have much over the old and proven 7mmRM.</p></blockquote><p></p>
[QUOTE="Jud96, post: 924729, member: 69478"] Why would you go through all that money and work for maybe 100 fps? I'd just rebarrel and keep it a 7mm RemMag, especially if you have all the dies and brass for it. 1) You will need a PTG 7mm-300 WM AI reamer 2) Barrel life will decrease because you are overboring the cartridge even more than it already was. The .300WM case is slightly larger than the 7mmRM case. 3) 7mm STW brass is everywhere if you know what to look for. You can find Nosler 8mm RemMag brass everywhere right now, and all you have to do is run it through a 7mm STW full-length sizing die to make 7mm STW brass. No trimming, no headache, no issues. Just size and load. and you have instant 7mm STW ammo. I recommend the jump from 7mm RM to 7mm STW. That's a much bigger jump than going to the 7-300 WM. If you really want to step it up, call Brad Stair in Utah, and have him build you a 7mm STW Tejas. You can shoot regular 7mm STW brass and ammo in it to fire-form your cases +1 the 7mm-300 Winchester doesn't have much over the old and proven 7mmRM. [/QUOTE]
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7mm RM to 7mm-300 WM AI questions.
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