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Rifles, Reloading, Optics, Equipment
Gunsmithing
.300 Win mag to .300 Ultra mag
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<blockquote data-quote="Fiftydriver" data-source="post: 199559" data-attributes="member: 10"><p>Jim Oliver,</p><p> </p><p>Your 300 RUM only gets you 150 fps more velocity then your 300 WIn Mag? What bullets are you using and what barrel length? From what I have seen, your either loading the Win Mag up very hot or loading the RUM very mild.</p><p> </p><p>A fast 300 Win Mag will get you 3100 fps with a 180 gr and right around 3000 fps with a 200 gr bullet. On average. </p><p> </p><p>A 300 RUM will easily do 3300 fps with a 180 and some will even push 3350 comfortably. And the 200 gr bullets will usually always break 3200 fps in any barrel of at least 26" in length.</p><p> </p><p>In fact, a 300 RUM will generally drive a 220 gr bullet to nearly the same velocity as the 300 Win Mag will drive a 180 gr bullet.</p><p> </p><p>Now if the barrels are short, this will greatly handicap the big RUM. Also, if your using lighter bullets, the advantage will be smaller as well.</p><p> </p><p>Just curious on what your using to only see a 150 fps advantage with the RUM. Not a flame in any way, as we all know, some barrels are fast, some are slow so this could certainly be possible but it is not the norm comparing these two chamberings.</p><p> </p><p>Take care,</p><p> </p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 199559, member: 10"] Jim Oliver, Your 300 RUM only gets you 150 fps more velocity then your 300 WIn Mag? What bullets are you using and what barrel length? From what I have seen, your either loading the Win Mag up very hot or loading the RUM very mild. A fast 300 Win Mag will get you 3100 fps with a 180 gr and right around 3000 fps with a 200 gr bullet. On average. A 300 RUM will easily do 3300 fps with a 180 and some will even push 3350 comfortably. And the 200 gr bullets will usually always break 3200 fps in any barrel of at least 26" in length. In fact, a 300 RUM will generally drive a 220 gr bullet to nearly the same velocity as the 300 Win Mag will drive a 180 gr bullet. Now if the barrels are short, this will greatly handicap the big RUM. Also, if your using lighter bullets, the advantage will be smaller as well. Just curious on what your using to only see a 150 fps advantage with the RUM. Not a flame in any way, as we all know, some barrels are fast, some are slow so this could certainly be possible but it is not the norm comparing these two chamberings. Take care, Kirby Allen(50) [/QUOTE]
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.300 Win mag to .300 Ultra mag
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