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Thread: 338/06 vs 300 win mag?

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    Member BIG 27's Avatar
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    Default 338/06 vs 300 win mag?

    I was in the market to fill the gap between my current 30.06 and my 338 in my line up and was originally thinking that a 300 win mag would be about perfect then I seen a 338/06 up for sale on a kimber of oregon rifle with a mauser action so I looked at ballistics/long range trajectory compared with the 300 win mag and on the heavier 200 -210 gr loads seems as the 338/06 is a better choice and since I live in Alaska where the heavier loads make more sense I choose to jump on the grenade. I know the 300 win mag has more bullet selection but I feel as the kimber would be a good choice here in Alaska.Also since I have a 270 weatherby it does really well in the 130-140 gr range feel as a made a good decision. I could also drop down to a 185 grain barnes tsx in the 338/06 that should be a flat shooter. Anyways just curious to get some feedback and if anyone has any expiernce with 338-06 and specifically the 185 gr bullets.Any load recipes would be appreciated!!!!!

    Thanks Much, BIG 27
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    Member Float Pilot's Avatar
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    The 338-06 has a couple advantages.

    1. More rounds in the magazine. 4 or 5... vs.... 3.

    2. the 338-06 does not have that stinking magnum belt so it loads smoother, more reliably and the cases can be resized better.

    3. The lack of the belt means that it will head space on the shoulder and it is easier to get better accuracy.

    4. You burn less powder.
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    Supporting Member Amigo Will's Avatar
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    I think the 338-06 may well be the best all around Alaska gun
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    Quote Originally Posted by BIG 27 View Post
    I was in the market to fill the gap between my current 30.06 and my 338 in my line up and was originally thinking that a 300 win mag would be about perfect then I seen a 338/06 up for sale on a kimber of oregon rifle with a mauser action so I looked at ballistics/long range trajectory compared with the 300 win mag and on the heavier 200 -210 gr loads seems as the 338/06 is a better choice...Anyways just curious to get some feedback and if anyone has any expiernce with 338-06 and specifically the 185 gr bullets.Any load recipes would be appreciated!!!!!
    The 338/06 is a fine cartridge. I presently have a 338 Federal (wife's), 338/06, 338 WM & a 340 Weatherby in the gun safe so I've a bit of experience with .338 cartridges in general. Each perform admirably with the faster cartridges allowing a bit further shooting without elevation correction while creating more recoil. At ranges under 300 yards I'd have no qualms about using a properly loaded 338/06 on ALL manner of North American game. Of course I'd use a properly loaded 300 WM on the same game at an additional 100-150 yards with nary a concern.

    The 185 TSX would not be my first choice, but that is not to say that it isn't a good choice. I've mainly used Hot-Cor, SGKs & Interlocks with great success. I've found RL19 and H380 are excellent propellants in the 338/06, but there are others that work nearly as well.
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    Member Dan in Alaska's Avatar
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    Quote Originally Posted by BIG 27 View Post
    Anyways just curious to get some feedback and if anyone has any expiernce with 338-06 and specifically the 185 gr bullets.Any load recipes would be appreciated!!!!!
    I have burned up a lot of IMR 4064 and, more recently, RL-15 in my .338-06. I've tried other powders, but I always come back to these two.

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    Member BIG 27's Avatar
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    Thanks guys keep the info coming.

    Much Appreciated, Tim
    A man does not climb a mountain without bringing some of it away with him,and leaving something of himself upon it -- Sir Martin Conway

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    Quote Originally Posted by BIG 27 View Post
    I was in the market to fill the gap between my current 30.06 and my 338 in my line up
    There's a gap between 30-06 and .338 Win Mag?
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    Member alaska bush man's Avatar
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    hands down the 300 win mag for Alaska.........I like the 200gr Bullet Accubond?

    the 338/06 like the 35 whelen is a 30-06 with just a bigger bullet
    Alaska

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    Member hodgeman's Avatar
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    A friend of mine shoots one of these for everything. Uses a 210gr Partition exclusively.

    His report is this bullet is tailor made for that case and performs perfectly on game.

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    Quote Originally Posted by alaska bush man View Post
    the 338/06 like the 35 whelen is a 30-06 with just a bigger bullet
    I'd say that's a pretty big compliment...

    There is nothing a 30/06 will not do well in AK. I'd say that for the bigger varieties of game the 338/06 (or 35 Whelen) is a step in the right direction from the '06.
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    the 338-06 is a little step down from the 338 win mag. The 338WM will shot a 210 partition at about 2850fps and the 338-06 will push the same bullet about 2600 to 2650 depending on the powder. I picked the 338-06 over the 338 win mag when I had one built because of recoil. The recoil is less in the 338-06 and you don't give up a lot of performance. The 300 WM will push a 200 Grain about 2700 fps or so. The 338-06 use less powder and doesn;t have a belt like said before. Also you can load heavier bullets with the 338-06 like 250 accubonds and to the 300 WM goes up to 220 grains. Under 300 yards I don't think that any animal will tell. They will be dead no matter what. I like the 338-06, because it is a little different and it kills good.

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    Member BIG 27's Avatar
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    The 338/06 is more efficient when necked up and will push 210 great bullet at same FPS as a 30.06 180 gr bullet that is my research
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    Quote Originally Posted by Diesel Nut View Post
    There's a gap between 30-06 and .338 Win Mag?
    I think I agree with your point if you mean that the gap is too small to need filling with a third cartridge.

    There is a gap. for example, if you like heavy and big bullets, the .338 Win Mag will push a 250gr .338 caliber bullet faster than the 30-06 will push a 200gr .308 caliber bullet. Or, if you like speed, the .338 Win Mag will push a 225gr bullet more than 350 fps faster than a 30-06 will push a 220gr bullet.

    But I agree that, if you have a 30-06 and a .338, you don't need a .300 Wby; 8mm/.325 mag; or .338-06 to fill that narrow "gap"--unless you're just looking for an excuse to buy a new rifle, which is not a bad thing.

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    Quote Originally Posted by BIG 27 View Post
    The 338/06 is more efficient when necked up and will push 210 great bullet at same FPS as a 30.06 180 gr bullet that is my research
    In most loading information you'll find that the 338/06 is loaded 7-8,000 PSI higher than the 30/06 due to SAAMI parameters. Simply comparing reloading/ballistics data is comparing apples to oranges in these two cartridges.
    Foolishness is a moral category, not an intellectual one.

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    Marinehawk

    Funny maybe I am a bit of a gun nut. Us gun nuts need to justify our addictions. But it will get used so no harm done right. I killed my moose this year with an 06 Barnes 185 tsx he took about 3 steps and piled up. I think we can all agree shot placement is key.But on the other hand I had to shot my grizzly several times in the Brooks to dispatch him with a 270 weatherby. Bears seem to have 9 life's most of the ones I have taken.Most of my readings say they sweet spot
    for the 338-06 is 200-210 great bullets which I think is pretty well suited for most Alaska game.

    Thanks Guys

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    I mulled this over when I picked my last rifle. I had the same questions. It came down to a few factors.

    1. If the .300 Win Mag is good for the 1000yd competitors, well, that says a lot.
    2. A .300 Win Mag can be extremely versatile in it's loadings.
    3. If you don't load, you can find the ammo almost anywhere. Heck a box of fine shooting Federal HotCorrs only cost $26!
    4. Lastly, when Thompson Center came out with their Icon Weathershield in .300 Win Mag, I had to have one.

    I'm smitten, I love the danged thing. If I had a pack, rock or sticks to shoot from, 500yds isn't that far for it. I'm not cappin' on the .338-06 in any way, just have my preference.

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    All of the rounds mentioned will kill Ak game very nicely from the 06 through the 338Win. The 300Win has an advantage over the 338/06 in range if nothing else. Both will shoot 250 gr bullets to 2600/2700 fps. The 300 has a much higher BC. When it comes to 225 gr, the 300 will hit almost 2900 compared to about 2700 from the 338/06. As you go lighter, the edge stays with the 300. 200gr at about 3000fps vs 2800 for the 338/06. Now I understand that these are just numbers on paper and only have a certain value on real world performance but the 300Win will do all the 338/06 will do up to 250 gr bullets and shoot flatter as well. It will use more powder and kick harder though. My prefrence would be the 35Whelen or 350 Rem, but that's why there are so many cartridges. So we can argue about what's best.

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    Supporting Member iofthetaiga's Avatar
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    Quote Originally Posted by Float Pilot View Post
    The 338-06 has a couple advantages.

    1. More rounds in the magazine. 4 or 5... vs.... 3.

    2. the 338-06 does not have that stinking magnum belt so it loads smoother, more reliably and the cases can be resized better.

    3. The lack of the belt means that it will head space on the shoulder and it is easier to get better accuracy.

    4. You burn less powder.
    5. The .300 Win Mag is just plain ugly.

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    Member Float Pilot's Avatar
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    When it comes to 225 gr, the 300 will hit almost 2900 compared to about 2700 from the 338/06.
    While it is true that longer heavier bullets can be pushed out of a 300 Win Mag at fair velocities, ( My 26 inch barreled 300 Win Mag will accurately push a 190 and 200 grain bullets at 2,900 fps or a 220 grain at 2,730-2,800 fps) the rifling twist of most 300 Win mags do not lend themselves to most bullets in the 220 to 250 grain range.
    An additional concern is that the short case neck of the 300 Win Mag requires seating heavy bullets so deep that the powder capacity is rapidly reduced. That is why you see 240 and 250 grain 30 caliber bullets being used more is cartridges like the 300 rem Ultra Mag or the 30-378 Weatherby.

    In the 338-06 you are dealing with a smaller diameter non-magnum case that has a little more neck. For instance, 62 grains of H4350 will safely push a 225 grain Nolsler Accubond at 2,780 to 2,800 fps from a 24 inch barrel. RL-17 will do about the same thing.
    For a 250 grain bullet in the 338-06 most of the top loads give 2,500 to 2,540 fps from a 24 inch barrel. Not bad for a standard case.

    Within reasonable and sportsman-like hunting ranges of 350 yards and closer, the 338-06 does just fine. It is not going to be a 800 yards mountain goat sniper cartridge.
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    Member 1Cor15:19's Avatar
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    Quote Originally Posted by Float Pilot View Post
    While it is true that longer heavier bullets can be pushed out of a 300 Win Mag at fair velocities, ( My 26 inch barreled 300 Win Mag will accurately push a 190 and 200 grain bullets at 2,900 fps or a 220 grain at 2,730-2,800 fps) the rifling twist of most 300 Win mags do not lend themselves to most bullets in the 220 to 250 grain range.
    1:10 is standard SAAMI for a 300 WM. That twist will stabilize the heaviest .30 caliber bullets--even the 240 SMK. I do agree that they are not truly suitable for the 300 WM but that's another story IMO.

    Quote Originally Posted by Float Pilot View Post
    An additional concern is that the short case neck of the 300 Win Mag requires seating heavy bullets so deep that the powder capacity is rapidly reduced. That is why you see 240 and 250 grain 30 caliber bullets being used more is cartridges like the 300 rem Ultra Mag or the 30-378 Weatherby.
    The short neck is much maligned, but in an action that will allow OAL of 3.4 inches or more it is not a concern. Magazine length & the throat determine where to seat a bullet in the 300 WM. The neck has a much greater impact on bullet selection than it does velocity by loss of capacity. Bullets with long ogives must often be seated with the ogive below the case mouth (which is not a good thing) hence the various attempts to circumvent the issue by various manufacturers (protected point, mag-tips, etc.) in rifles with 3.34 length magazines.

    Quote Originally Posted by Float Pilot View Post
    In the 338-06 you are dealing with a smaller diameter non-magnum case that has a little more neck. For instance, 62 grains of H4350 will safely push a 225 grain Nolsler Accubond at 2,780 to 2,800 fps from a 24 inch barrel. RL-17 will do about the same thing. For a 250 grain bullet in the 338-06 most of the top loads give 2,500 to 2,540 fps from a 24 inch barrel. Not bad for a standard case.
    I won't say you can't get these velocities, but I will say that I've never gotten them and I have only one reloading source that achieves more than 2700 fps (and then only 2705) with a 225 and that in a 25 inch pressure barrel. Nosler's fastest listing of the 225 AB is 2595 fps (24 inch) in its most recent loading manual. I'd believe in an increase in some rifles, but 200+ fps is unlikely without excessive pressures in any rifle. In fact, I only get 2850-2875 in a 338 WM (24 inch) with 225s and then it is only with select powders.
    Foolishness is a moral category, not an intellectual one.

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