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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone own a 7mm 300 Win Mag?
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<blockquote data-quote="Kiwi Nate" data-source="post: 870573" data-attributes="member: 8533"><p>Hi Cockcroft, sorry I don't get much time to stop by LRH.com these days. </p><p></p><p>Please check the necks on fired cases, try to pass a projectile through the case mouth. Will give an immediate indication of case neck thickness. The projectile should pass through easily. Some brands including Nosler are too thick and need neck turning. But as someone else suggested, WW is the easy answer. Rem brass is not too bad either. </p><p></p><p>Fireform with trail boss to preserve barrel life. </p><p></p><p>Monitor rate of fouling while the barrel is still fresh. If it is a heavy fouler, this may prevent groups coming right down at the moment. </p><p></p><p>Seating depth 40 thou to begin with if using that particular bullet. COAL with 40 thou jump should be around 3.582". Occasionally, a smith will neglect to cut the freebore (the Practical reamer is a no throat design, second throat reamer must be used). This has caught one or two guys out. </p><p></p><p>If you need more help, my phone number is on our site, NZ business hours etc. </p><p></p><p>One step at a time.</p></blockquote><p></p>
[QUOTE="Kiwi Nate, post: 870573, member: 8533"] Hi Cockcroft, sorry I don't get much time to stop by LRH.com these days. Please check the necks on fired cases, try to pass a projectile through the case mouth. Will give an immediate indication of case neck thickness. The projectile should pass through easily. Some brands including Nosler are too thick and need neck turning. But as someone else suggested, WW is the easy answer. Rem brass is not too bad either. Fireform with trail boss to preserve barrel life. Monitor rate of fouling while the barrel is still fresh. If it is a heavy fouler, this may prevent groups coming right down at the moment. Seating depth 40 thou to begin with if using that particular bullet. COAL with 40 thou jump should be around 3.582". Occasionally, a smith will neglect to cut the freebore (the Practical reamer is a no throat design, second throat reamer must be used). This has caught one or two guys out. If you need more help, my phone number is on our site, NZ business hours etc. One step at a time. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Anyone own a 7mm 300 Win Mag?
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