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Rifles, Reloading, Optics, Equipment
Reloading
COAL for 300 weatherby?
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<blockquote data-quote="MagnumManiac" data-source="post: 547426" data-attributes="member: 10755"><p>If you build this rifle to do what you're saying, then it will give you dangerously high pressures with factory rounds!</p><p>All Weatherby chambers have 'freebore' built into them which effectively reduces starting pressure and allows higher velocities than normal due to heavier charges of powder that are used.</p><p></p><p>With most bullets, an OAL of 3.560" will give a freebore of around .500", I know mine did. The freebore on average is close to .500" on most Weatherby rounds.</p><p>There is no point trying to load rounds to be close to the rifling in such a rifle barrel, in fact it can reduce the accuracy of the rifle. The long bullet jump gives the bullet time to straighten before it engages the rifling fully!</p><p>Weatherby chamberings are very accurate, and even moreso with well tuned ammunition tailored to each rifle. One of the smallest recorded groups @ 1000yrds was shot from a 300Weatherby rifle!</p><p></p><p>I would leave the chamber as is from factory.</p><p></p><p>Cheers.</p><p>gun)</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 547426, member: 10755"] If you build this rifle to do what you're saying, then it will give you dangerously high pressures with factory rounds! All Weatherby chambers have 'freebore' built into them which effectively reduces starting pressure and allows higher velocities than normal due to heavier charges of powder that are used. With most bullets, an OAL of 3.560" will give a freebore of around .500", I know mine did. The freebore on average is close to .500" on most Weatherby rounds. There is no point trying to load rounds to be close to the rifling in such a rifle barrel, in fact it can reduce the accuracy of the rifle. The long bullet jump gives the bullet time to straighten before it engages the rifling fully! Weatherby chamberings are very accurate, and even moreso with well tuned ammunition tailored to each rifle. One of the smallest recorded groups @ 1000yrds was shot from a 300Weatherby rifle! I would leave the chamber as is from factory. Cheers. gun) [/QUOTE]
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Reloading
COAL for 300 weatherby?
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