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Rifles, Reloading, Optics, Equipment
Reloading
240gr SMK with a 1:10 twist??
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<blockquote data-quote="jmden" data-source="post: 229639" data-attributes="member: 1742"><p>There's a few post out there on this, but, yes, at the speed generated by the 300 RUM and up, it'll stabilize out to some distance beyond 1000yrds and then at some point, from what I'm told, you can't hit the side of a barn. I'm shooting 104.5g US869 and am at or just above 3K fps with a 300 RUM with bullet seated right on the lands. Haven't tried H50BMG with that bullet, but I think Retumbo may be too fast. US 869 is not especially temp stable and the load given above is a cooler weather load. Reduce as appropriate for warm weather (45 deg or above). A 30-378 should move the bullet along nicely with US 869. Good luck.</p></blockquote><p></p>
[QUOTE="jmden, post: 229639, member: 1742"] There's a few post out there on this, but, yes, at the speed generated by the 300 RUM and up, it'll stabilize out to some distance beyond 1000yrds and then at some point, from what I'm told, you can't hit the side of a barn. I'm shooting 104.5g US869 and am at or just above 3K fps with a 300 RUM with bullet seated right on the lands. Haven't tried H50BMG with that bullet, but I think Retumbo may be too fast. US 869 is not especially temp stable and the load given above is a cooler weather load. Reduce as appropriate for warm weather (45 deg or above). A 30-378 should move the bullet along nicely with US 869. Good luck. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
240gr SMK with a 1:10 twist??
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