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7mm Rem. Mag vs. .308 Winchester

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Unread 01-16-2004, 01:04 AM
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Join Date: Apr 2002
Location: Montana
Posts: 259
Re: 7mm Rem. Mag vs. .308 Winchester

Correct me if I am wrong, but I am guessing that your ballistics concern is more with that of trajectory than energy, as both will kill things way out there. And you are planning on using holdovers instead of scope adjustments right? Then I think you would be better served by the 7mm.

I have a Rem 700 BDL SS 24" barrel 7mm Mag. Weighing 7.5 lbs. I think recoil is mild. Shoots .5 inch groups at 100 yards shooting 140gr. BT's at 3340fps. or 150gr. sciroccos BC .519. at 3190fps. Pretty sure a 308 aint going to keep up with that. It will have more velocity and energy and less drop and wind drift than the 308.
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Unread 01-16-2004, 09:33 AM
Posts: n/a
Re: 7mm Rem. Mag vs. .308 Winchester

Personaly I like my 30-06Ai , shooting a 180gr Nosler Partition at 2900+fps. it has and will kill Elk at 350yds and that was busting the onside shoulder on one bull in the 700lb range.
the gun weighs about 8lbs scoped.
any short ,light ,high horsepower rifle is going to have some recoil with out a brake.

the question realy needs to start with what are you shooting at and how far ?
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Unread 01-16-2004, 04:00 PM
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Join Date: Jan 2003
Location: The rifle range, or archery range or behind the computer in Alaska
Posts: 3,740
Re: 7mm Rem. Mag vs. .308 Winchester

Of course I am cartridge bias!! [img]images/icons/grin.gif[/img] [img]images/icons/tongue.gif[/img]

Who here isnt??

I wasent trying to say that the 308 would kick the crap out of the 7mm rem mags *****, just making a comparison that shows the 308 can hold its own and then some. Also there are some loads for the 308 that can give a 7mm a major run for its money with better all around accuracy, less kick and more economics and longer bbl life. Some shooters see the 7mm rm mag as the end all be all over the 308 win. Like was said in MTBA's post, they have bothe killed things way out there!!

But I am still bias!! [img]images/icons/smile.gif[/img]

PS. Its not that I am so bias about the 308 win as I am against the 7mm bullet. Barrels and case capacity being equal, the .30 cal bullet has the upper hand over the 7mm. ie: heavier bullets, higher BC's and more velocity.

[ 01-16-2004: Message edited by: meichele ]
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
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Unread 01-16-2004, 05:49 PM
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Join Date: Dec 2001
Location: Long Island, New York
Posts: 2,423
Re: 7mm Rem. Mag vs. .308 Winchester

In a given bullet weight and style, wouldn't the 7mm bullet have a higher BC and better SD than the .308 bullet?
On top of that, the 7mm should have a higher launch speed. [img]images/icons/smile.gif[/img]

You just can't get away from the obvious advantages of case capacity. [img]images/icons/grin.gif[/img] Particularly in a longrange hunting application.


I might add I thing about the .308win. Couple it with the 150gr Failsafe and it is an unbelievable killer for a half throttle cartridge. [img]images/icons/shocked.gif[/img]
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Unread 01-16-2004, 06:12 PM
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Join Date: Jan 2004
Location: So. IN
Posts: 174
Re: 7mm Rem. Mag vs. .308 Winchester

My vote is for the 7mm.
Accuracy,yes the 308 win is more "inherently accurate" but I have yet to see ANY 308 that will out perform my 7mm Rem mag at any range.
I'm talking velocity, energy, trajectry & accuracy. I shoot the 162gr AMAX w/ a b.c. of .625 @ {way the hell higher BCthan a comparable 30 calbullet) 3050fps w/ accuracy @about.2moa. I still have over 1k ftbs of energy @ 1000yrds. 180gr berger vld bullets have nearly a.700 BC, aint a 30cal on the planet that has that. Hell the U.S. secret service uses a 7mm mag for a sniper rifle. A 160gr Nosler accubond or partition and or 160&175gr sierra bullets will plow over elk at any range you feel comfy shooting.
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Unread 01-16-2004, 06:24 PM
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Join Date: May 2001
Posts: 2,369
Re: 7mm Rem. Mag vs. .308 Winchester


They got ya guy...

Place the 308 on the ground and slowly back away!!!

Looks like we're outnumbered... You put up a good fight and I was watching from the sidelines in case ya needed help but it looks like a losing battle no matter if just one of us get's pummeled or the both of us..

Dave King now slowly slinking away... 308 in hand of course. [img]images/icons/smile.gif[/img]
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Unread 01-16-2004, 07:52 PM
Silver Member
Join Date: Dec 2001
Location: Canyon Ferry, MT
Posts: 324
Re: 7mm Rem. Mag vs. .308 Winchester

Here's some quickload calculations, for the heck of it:

26" barrel
180gr Berger VLD
46gr RL19
63,305 lbs-psi
2687 fps mv
1000yd, 1554 fps/967 ft-lbs, -29.6 moa

7mm Rem Mag
26" bbl
180gr Berger VLD
64.5gr RL22
63,480 lbs psi
2945 fps mv
1000yd, 1737 fps/1206 ft-lbs, -23.8 moa

.308 Win
26" bbl
180gr Berger VLD
44gr RL15
63,896 lbs psi
2722 fps
1000 yd, 1380 fps, 782 ft lbs, -32.2 moa

the 7mms can carry the freight quite well downrange.

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