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7mm-08 vs. .338 Federal

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Unread 03-18-2010, 05:59 AM
Platinum Member
Join Date: Feb 2008
Location: IOWA
Posts: 2,123
Re: 7mm-08 vs. .338 Federal

338 Federal is a great choice for larger game like moose. While not longrange, certainly will work to 400yards. The other caliber to look at in that same theme would be the 338-06 for just a bit more case capacity.
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Unread 03-18-2010, 06:17 AM
Junior Member
Join Date: Jan 2010
Location: Lewiston, Idaho
Posts: 3
Re: 7mm-08 vs. .338 Federal

I've got a 338 Federal in a Sako 85 and it is one of my favorite guns to carry. On Whitetail it is just "Bang - Flop" the deer have not taken even one step.
Velocity is where the 200gn and 338 frontal nose just do the trick. Numbers just don't always indicate performance on game.
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Unread 03-18-2010, 06:45 AM
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Join Date: May 2009
Posts: 284
Re: 7mm-08 vs. .338 Federal

the 338-06 and 338 federal should work for what your wanting. Don't forget the 35 Whelan. A little more power, and the ones I've shot have been absolute tack drivers.
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Unread 03-18-2010, 09:35 AM
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Join Date: Feb 2010
Posts: 192
Re: 7mm-08 vs. .338 Federal

.280 will shoot any size 7mm bullet and is a very good round short of 7mm Magnum.
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Unread 03-18-2010, 10:05 AM
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Join Date: Feb 2009
Location: Sedalia, MO
Posts: 1,256
Re: 7mm-08 vs. .338 Federal

Hey Michael,

Given what you're looking at here, I'd have to go with the 338. In dealing with the bigger game on your list, I'd just prefer the added weight and diameter that it offers over the 7mm bore size. Since you say that you're not shooting past 200m or so, the added BC and velocity of the smaller bores isn't going to offer much to you. Take the 338 and don't look back!

Did you make it down to the IWA show in Nurnberg last week? Should have been able to find whatever you were looking for there, and it was a great show.

Kevin Thomas
Lapua USA
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Unread 03-18-2010, 10:17 AM
Junior Member
Join Date: Mar 2010
Location: Hamburg, Germany
Posts: 11
Re: 7mm-08 vs. .338 Federal

I did not go to IWA, but it's going to be a "custom" rifle.
potential bases:
- Sako 85
- Barnard action + LW barrel
- Roedale avenger 2 + LW barrel
- (maybe surgeon action, of which I own one in 7mm-08)


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Unread 03-19-2010, 05:21 AM
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Join Date: Aug 2009
Location: Carlisle, PA
Posts: 478
Re: 7mm-08 vs. .338 Federal

For the game and ranges you are discussing the .338 Federal and .338-06 are both excellent choices and both better than a 7mm-08.

The graphs show the .338 Federal has a 25% energy advantage over 7mm-08 primarily due to the larger piston area on the back of the larger diameter bullet allowing it to impart more push to the bullet at the same pressure. As was said earlier, at the ranges you are shooting the better BC fo the 7mm bullet isn't going to make up for it's smaller diameter.

The .338-06 packs in more powder but requires a long action. The .338 Federal is a short action cartridge which may be an advantage. I just ordered a .338 barrel to chamber in .338 Federal for one of my Savages. I'll pull the .243 barrel off when ground hog season ends and install the .338 Federal barrel for deer season. I don't get any shots over 300 yards so I think it will work really well for deer here in PA.

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