7mm rem mag vs 308?

Question

which is better for ballistics

Answer 1

If you mean "paper ballistics", the 7mm Mag has higher numbers in every category.

If you mean practical ballistics, yes the 7mm will shoot farther and flatter and retain more energy down-range, especially with the superb 162gr. bullet, and if I need to make really long shots at antelope and the like, i would go with the 7mm over the .308, though at normal ranges I would not feel handicapped by a .308 with a good 165gr. load.

As far as terminal ballistics go, both are just as effective on the same size game within common hunting situations. For elk, moose, bear and bigger, I would still want a bigger calibre than either 7mm or .308, such as a .338.

Answer 2

Hunt so your shots are about one hundred yards. Got my sons Rem 700s in 7mm rem mag, had the barrels cut back a little and put muzzle brakes on the rifles (you MUST have good hearing protection if you do this and consider that sound blast might cause as much long term flinching as the recoil) and one for me without the brake and we shoot rem managed recoil for Texas white tails. It does not really kick but they are loud. At a hundred yards or so you can cut a deer's heart in half most of the time and they won't run too far after that. Generally die right there. And if you want to shoot something larger, change the ammunition and you can shoot whatever you like, short of things with claws that weigh a half ton or more. Just practice so the placement is right and if you are shooting something dangerous be wise enough to shoot through a leg bone into vital areas with your first shot. And you can take the head/neck of a turkey at even longer ranges. If you are looking for antelope you might find the 7mm has certain advantages, especially if it is a wounded animal leaving the county. But as one writer put it, shooting a long way means carrying meat back a long way, and between the time you pull the trigger and the bullet gets there, the animal may move and now you have a wounded animal running ever further. Do that on a mountain and you can bet you not only have to carry it back, but you will have to carry it back in several trips, uphill. Unless of course it eludes you and dies suffering. Oh, and mountains at night are not your friend and if it is a large animal those several trips uphill can take a lot of time. Don't forget to spend more on the glass on top of the rifle than you spent for the rifle.

Answer 3

First off you are compairing apples to Starfruit. The 7mm Mag is basied off the 300 win mag necked down to 7mm. The 308 is much shorter and hold much less powder. The 7mm is use a lot out west for them long shots on deer elk ect... The 308 is a great allround cartridge and so is the 7mm Mag the 7mm mag will out shoot a 308 in terms of distance of a shot you can take. This is not only do to the increased speed over teh 308 but do to the long sleek bullets with higher balistic coeffiecents. Meaning they retain more speed longer. Because they are slicker.

Answer 4

the 7mm mag has around 80grains water capacity and acheives over 3000ftlbs with most loads.

The 308 win has around 55grains of water and achieves around 2800ftlbs maximum.

For hunting ranges, say to 500yards, the 7mm will reach out further and faster, and is considered to have 'better ballistics'.

However the 308 may be considered to have better ballistics for close range on big game, since much heaveir bullets are available for the 30cal, up to 250grains. So theoretically it can take bigger animals, though their would not be any real difference.

Lastly being a military cartridge the 308 may have the option of special bullets and sniper rifles, so in these it can be used to greater distances than most hunting rifles,unless they have been similarly specialised too.

Answer 5

I have a 7mag. The ballistics are fantastic, but after a few rounds at the range you can end up with a whale of a headache and sore shoulder. It kicks like a mule, which means it hits like one on the other end. I use mine for very long shots(400 yards in some cases) while hunting mulies. The .308 is great in the brush and for shorter distances, but the 7 mag. is a fast, flat shooter.

Answer 6

You are comparing a magnum round to a standard round. Both are good. The .308 shoots a wider slug, 7.62mm vs. .7mm, or in American caliberation: .30 caliber vs. .28 caliber. Velocity wise, down-range energy retention wise and trajectory wise the magnum round has the edge but the .308 is still an excellent long distance shooter. The big advantages that the .308 has is that it is cheaper to shoot, has less recoil and it does shoot a wider bullet. The big seven will shoot further and hit harder at both ends. So there you have it.

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Answer 7

7mm Rem Mag Ballistics

Answer 8

.308 would be my first choice. There is little kick with this round compared to the 7mm. The .308 will travel further and will be more accurate. But if your hunting you shouldn't worry too much about that. Just worry about what your taking down. I wouldn't use a .308 on anything bigger than a deer but thats just me.

Answer 9

Guns and Ammo magazine's website has Ballistics charts. Want to see it? Here ya go:

http://www.gunsandammomag.com/ballistics/?url=%2Fballistics%2F30_378_weatherby_magnum.html&x=11&y=2

Most of those in the chart over on the right have 100/300/400/500 yards letting you know that it was zeroed out at 200 yards. But when you look at the chart you will notice they all drop about the same but with different loads you may have better results.

Answer 10

Most of the answers had meretricious, but simply put the .7mm is a lot faster for these reasons. Lighter& smaller bullet , better bullet cof., last but most important is that it has a whale of a lot more powder behind it. Take the .300 RUM with all it's powder and the 7 mm sucks, but both of them kick like a mule-- physics , reaction.