.308 trumping 7mm-08 in drop and energy, 150gr TSX BT's in both, interesting stuff.

bearkilr said:
So to keep it fair as you say, why not compare the 308 with the 338 Federal with the same bullet weights? :D

You may find similar results as you did with the 7mm-08/308 comparison.
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Please do, would be interested in results. :) I think we'll find the .308's the happy medium, and the .338 Fed will be great inside 200 yards (which comprises 95% of normal hunting).
 
my 7mm-08 kills stuff

bear027.jpg



Thats all I want, something that kills stuff..
all kinds of stuff,.. got any stuff?

don't own a .308 but I'm sure it kills stuff too!
 
Doesn't mean hoot, as the .308's handicapped 2", so you'll need to add 60-80fps to the .308's figures. Also, our comparison here us looking at ranges we hunt at with small cartridges, ie. not 500 yards. We're looking 400 and inside, which is absolute max range for deer with either cartridge.


shortaction said:
The following info is from the Hornady Sixth Edition Reloading Manual. It showed the 7mm-08 with a 24" barrel so I deducted 60 fps(30fps per inch of barrel) as the 308 only had a 22" barrel.

These are max loads for both calibers and a 200 yd zero. This shows the 7mm-08 at 2.4" flatter and with 20% more energy at 500 yards or another way to look at it is the 7mm-08 has as much energy and velocity at 500 yards as the 308 does at 400 yards. All this and shooting a higher S.D. bullet to boot!!!


308 with 150gr SST/Interbond .415 BC

Ballistics Table in Yards 150 gr., .415 B.C. www.hornady.com

Range (yards) Muzzle 50 100 200 300 400 500
Velocity (fps) 2800 2690 2582 2374 2176 1988 1810
Energy (ft.-lb.) 2611 2410 2221 1878 1577 1316 1091
Trajectory (200 yd. zero) -1.5 0.8 1.9 0.0 -8.0 -23.4 -47.6

--------------------------------------------------------------------------------

7mm-08 with 154gr SST/Interbond .530 BC

Ballistics Table in Yards 154 gr., .53 B.C. www.hornady.com

Range (yards) Muzzle 50 100 200 300 400 500
Velocity (fps) 2740 2655 2571 2408 2251 2099 1954
Energy (ft.-lb.) 2567 2410 2260 1982 1732 1507 1305
Trajectory (200 yd. zero) -1.5 0.8 1.9 0.0 -7.9 -22.6 -45.2
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Doesn't mean hoot, as the .308's handicapped 2", so you'll need to add 60-80fps to the .308's figures.
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From your very own quote:

Originally Posted by shortaction View Post
The following info is from the Hornady Sixth Edition Reloading Manual. It showed the 7mm-08 with a 24" barrel so I deducted 60 fps(30fps per inch of barrel) as the 308 only had a 22" barrel.
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He very plainly posted (and you even quoted) that he already subtracted 60fps from the 7mm-08 data to compensate for the 2" difference in barrel length.
 
just came back from the range... my tikka 7-08 still shoots great. Fellow shooter with his rem 700 in 308 shot great too. IMO, doesn't matter what you shoot, as long as you practice and are good with it. The deer I shot last year didn't have time to calculate the bullets energy drop as it was hitting the ground.... ;)
 
I have a Remington Bull barrelled BDL 7-08 since 1984 among some 60 or so other rifles. I have shot woodchucks (marmottes) at 700 paces using hot 100gr loads at 3400 fps chronoed. I have shot cariboo withone shot kills as well as dear. I had my buddy kill two, one shot with a 154 gr silhouette load. The first one through the lungs and hit the second one in the heart. Luck, YUP!!! Shot bear with one shot kills. It is all about shot placement and bullet selection! I hit one between the ribs (8.5X20 Leupold Target) and it actualy exited between the ribs (LUCKY!). The 7-08 was developed as a long range rifle sihouette rifle usinf 140 gr bullets. I preffer the Hornady 139 BTSP over the 140 Partitions for any larger game.

The 7-08 with 140 or 139 outperforms the 30-06 150 gr at any range to 200 Meters. And, I don't care about statistics but can verify results for some 26 years on game!

Regards,
Henry;)
 
struff55 said:
Seems there is one of these meanless threds everyday.
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blargon said:
I can't believe we are even discussing this...:onCrack:
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If you don't like it, don't post gents. Pretty simple. :)

stubblejumper said:
From your very own quote:



He very plainly posted (and you even quoted) that he already subtracted 60fps from the 7mm-08 data to compensate for the 2" difference in barrel length.
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Roger that, my bad, as you noticed with your own reading of another post we all miss things here and there.
 
Ardent said:
Please do, would be interested in results. :) I think we'll find the .308's the happy medium, and the .338 Fed will be great inside 200 yards (which comprises 95% of normal hunting).
Click to expand...

Here you go, as per Hodgdon data online:

Top load muzzle velocity for 180 grain bullets:

308 Win- 2674 fps with IMR 4895

338 Federal- 2811 fps with IMR 8208 XBR


For 200 grain:

308 Win- 2514 fps with Hodgdon BLC-2
338 Federal- 2657 fps with IMR 8008 XBR

As you can see the 338 Federal clearly trumps the 308 Win. :)

BTW, I don't have a 7mm-08 and I like my 308, just making a point.
 
Ardent, you can't compare two bullets of the same weight in different calibers.

And it's kind of silly anyway - like gatehouse said it won't make any practical difference at any likely hunting ranges anyway.


Just to be more practical tho for 'comparison' - a 140 grain tsx in the 7-08 would be much more practical. It still has higher bc and higher sectional density.

using a relatively standard load of 50 grains of Hodgdon H414 against your varget load, the 7mm08 will still shoot about an inch flatter at 250 yards. And would have better SD for those who care about such things.

So the 308 does not match up to the 7mm for 'flatness'. on the flip side - who the heck cares about one lousy inch drop at 250 yards? they're both still plenty flat enough!
 
I prefer the 308 to the 7-08 due to the greater variety of bullets available, and the larger bore size for a larger wound. Ammo is more readily available, and being able to shoot mislurp stuff in your rifle is a bonus.

For guys complaining about the 308 with 150's regarding long range shooting; you're right that 150's suck at range, which is why nobody who shoots a .308 uses them for that. Start looking at 165gr BT's, or better yet, 208gr Amax or 210gr Berger VLD's, and you've got a whole different animal. I'm not sure what the "best" load for the 7mm-08 is in terms of retained energy at long range, but I can tell you that for the .308 it is most certainly not anything in the 150gr weight range.
 
I prefer the 308 to the 7-08 due to the greater variety of bullets available, and the larger bore size for a larger wound.
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If you can't make due with a 7mm bullet in the 120gr to 175gr range for big game hunting,you have more problems than bullet selection.Unless you are hunting with solids,which are illegal for big game hunting in most locations,wound size is not determined by the unfired bullet diameter.Rather the wound volume is determined by the bullets frontal area as it expands,which is most largely effected by the bullet construction.
 
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