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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
tipped matchkings same load data as 1st gen SMK?
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<blockquote data-quote="benchracer" data-source="post: 1072684" data-attributes="member: 22069"><p>I found the 69 TMK's to have a lower muzzle velocity vs the standard 69 SMK's, using the same powder charge in my 22-250. That suggests a higher max charge for the TMK in my rifle. Though I didn't measure the two to compare bearing surface, I suspect the TMK has a shorter bearing surface than the SMK.</p><p> </p><p>Incidentally, the standard 69 SMK stabilizes and shoots well in my 12 twist 22-250. In contrast, the TMK's hit the target sideways, so it looks like they need more twist to stabilize than the SMK's do. Looks like the TMK's will be reserved for use in my 9 twist .223...</p></blockquote><p></p>
[QUOTE="benchracer, post: 1072684, member: 22069"] I found the 69 TMK's to have a lower muzzle velocity vs the standard 69 SMK's, using the same powder charge in my 22-250. That suggests a higher max charge for the TMK in my rifle. Though I didn't measure the two to compare bearing surface, I suspect the TMK has a shorter bearing surface than the SMK. Incidentally, the standard 69 SMK stabilizes and shoots well in my 12 twist 22-250. In contrast, the TMK's hit the target sideways, so it looks like they need more twist to stabilize than the SMK's do. Looks like the TMK's will be reserved for use in my 9 twist .223... [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
tipped matchkings same load data as 1st gen SMK?
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