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300 RUM or 338 RUM?? Which and why???

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  #15  
Unread 02-11-2010, 01:28 AM
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Re: 300 RUM or 338 RUM?? Which and why???

Ask yourself, do I want a super flat trajectory or super low wind drift numbers.

After owning two 300 RUM's and one 338 Edge, I will take the 338 every time. I wont always take a 338 over a 30 cal but when it comes to the RUM case, I refuse to ever own another 300 RUM.

Simply put, the 338's 300 SMK has alot less wind drift and alot more energy than the 30 cal variety and offers conciderably longer barrel life. You can drive them 30 cal 180's at 3300-3400 FPS+ all you want but at the end of the day all it does for you is allow you to brag that you pissed further than your buddy who owns a 7mm Rem mag as well as cook the throat in the bore at an alarming rate. 180's at 3300 FPS just doesnt hold a candle to the energy and lack of drift as the 338's 300 SMK.
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  •   #16  
    Unread 02-11-2010, 05:02 PM
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    Re: 300 RUM or 338 RUM?? Which and why???

    With the long heavy 338 bullets the 338 ultramag feeds better through the rem 700 action than the full length 300 ultramag necked up to 338. That is one of the main reasons they shortenned the 338 ultramag case. The .091 or whatever inches shorter has hardly any effect on performance. Both top out between 2800 and 2900 fps with a 30" barrel and 300 smk's.

    I agree with Michael. The 338 is the best choice in a hunting rifle. I have quite a few ultramags off the 300 ultamag case in 7mm, 300, 338, 358 and 375. Also the standard 338 ultramag. The 338 is the best all around caliber for hunting in this case.

    This year I used a 338 ultramag on elk. My accuracy load was 3264 fps with a 225 grain nosler accubond with a .555 or so BC out of a 26" barrel. No problem taking out a very large bull elk at 740 yards.
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    Last edited by Long Time Long Ranger; 02-11-2010 at 05:06 PM.
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      #17  
    Unread 02-11-2010, 06:32 PM
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    Re: 300 RUM or 338 RUM?? Which and why???

    Quote:
    Originally Posted by MontanaRifleman View Post
    That's what I have heard too, but what happens whne you try to put a 338 Rum into a 375 RUM?
    My guess would be that Remington had no idea how popular the RUM case and cartridges would be when the 300 RUM was first released. It was easy enough to make the 338 RUM shorter to prevent the 300 from being chambered in it. Subsequent developments would have required shorter/longer cases which may have no longer been practical; but who knows?
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      #18  
    Unread 02-11-2010, 07:44 PM
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    Re: 300 RUM or 338 RUM?? Which and why???

    Quote:
    Quote:
    Originally Posted by Varmint Hunter View Post
    My guess would be that Remington had no idea how popular the RUM case and cartridges would be when the 300 RUM was first released. It was easy enough to make the 338 RUM shorter to prevent the 300 from being chambered in it. Subsequent developments would have required shorter/longer cases which may have no longer been practical; but who knows?
    I think it's probably a case of trying to cut the liability possibility down. It's the same with the 7mm WSM. You cant put it into a 300 WSM, but you could put the 270 WSM into the 7mm which IME would be the easier mistake to make. It's all of little, to no practical benfit and unfortunate as far as I'm concerned. But not much one can do about it.
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      #19  
    Unread 02-11-2010, 08:31 PM
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    Re: 300 RUM or 338 RUM?? Which and why???

    Quote:
    Originally Posted by MontanaRifleman View Post
    I think it's probably a case of trying to cut the liability possibility down. It's the same with the 7mm WSM. You cant put it into a 300 WSM, but you could put the 270 WSM into the 7mm which IME would be the easier mistake to make. It's all of little, to no practical benfit and unfortunate as far as I'm concerned. But not much one can do about it.
    I can understand the manufacturer's concern. In our current world of unreasonable and unwarranted litigation no one takes responsibility for their own foolish mistakes. They just blame someone else and occasionally get rich in the process.

    I can't forget the time a range officer noticed a shooter who was having difficulty chambering a round in his new Wby Mark V in 7Wby mag. The range officer noticed that the shooter was trying to chamber 7mm Rem mag ammo and pointed it out to the shooter. The shooter wasn't surprised at all. He said that he was using the 7 Rem ammo intentionally because it was cheaper than the 7 Wby ammo.

    True story!
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      #20  
    Unread 02-11-2010, 09:47 PM
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    Re: 300 RUM or 338 RUM?? Which and why???

    Incredible
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      #21  
    Unread 02-13-2010, 12:14 AM
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    Re: 300 RUM or 338 RUM?? Which and why???

    Lol. Got to watch out for some people young and old.
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