300 Win Mag vs 7mm Rem Mag

[ZuluDeltaWhiskey]

Hey guys. I got a question. I hear a lot of debate between these two awesome rounds but I started thinking. With the 7mm the bullet weights ranged from 100g-175g. I guess there are some rare 195g but I've never seen any. And the 30 cal ranges from 100g-250g. If I had a 150g 7mm and a 150g 300 mag, wouldn't the 300 do everything the 7mm would, if not more? The 300 seems to me at least to be the more versatile option. Not trying to put down the 7mm in anyway. I just feel I'd rather have the option to have a heavier bullet or the same weight as a 7mm. My Dad disagrees. He likes the 7mm-08, 270, 7mm. I like 308, 30-06, 300 Win Mag.... And 338 lapua

If any of my information is wrong, please let me know!

[MongooseV8]

My choice between the two is the 7mm mag. Less powder and efficient bc bullets. But the 300 mag does have more energy downrange. Really depends on your goals.

[RobG]

I echo Mongoose. I love my 7's, they do all I need them to. I owned a .300 at one time, it just sucked to shoot as far as recoil. The 7 I can shoot all day.

[juelz919]

I went through this same thing. .300 win can shoot some great bullets thay will do amazing things. But 7mm can do some great work with lighter bullets. Less energy but far less kick. What do you need 4100 ft lbs of energy for?

I have neither now but 7mm with 175gr amaxs or ELDS as they call them can go forever and carry its energy forever.

[ZuluDeltaWhiskey]

I went through this same thing. .300 win can shoot some great bullets thay will do amazing things. But 7mm can do some great work with lighter bullets. Less energy but far less kick. What do you need 4100 ft lbs of energy for?

I have neither now but 7mm with 175gr amaxs or ELDS as they call them can go forever and carry its energy forever.

I need 4100 ft lbs of energy to stop those tactical mall ninja grizzly bears and buffalo that roam the streets. Always need to be prepared.

[juelz919]

It makes me really sad that gun makers have given up making heavy barrel 7mm. I would have one by now. They have decided that 300 win mag won that battle. Basically every manufacturer has a heavy barrel "tactical" 300, 308, and 223. Presumably because of military use. Sure there are "varmint" profiles for .243 but for the most part that sums it up.

[pennstater]

919,
You can always buy an after market barrel to suit your needs. There are many out there.
To the OP's question; they're both excellent rounds. Just up to the shooter which one fits their needs the most.

[Guapoh]

Check long range ballistics tables. 7Rem Mag will overtake the 300 far down range due to its better bc. 300 has more umph out of the muzzle that's true but the 308 bullet's impacted more by drag and wind. With many loads the 7 is moving faster and flatter once you're beyond several hundred yards.

US Secret service has used the 7mag for its sniper forces for years.

[Fjold]

For the same weight bullets, the 300 will shoot it faster and this shows up in the ballistics

Using the 150 grain Nosler Partition spitzer, Hodgdon says a few 7mm Mag loads will break 3000 fps while the 300 Magnum will break 3200 fps.

With a 100 yard zero, the drop from both cartridges are:

At 400 yards, the 7mm drops 24.9", the 300 drops 21.9"
At 500 yards, the 7mm drops 44.9", the 300 drops 40.8"
At 600 yards, the 7mm drops 72.9", the 300 drops 67.2"
At 700 yards, the 7mm drops 110", the 300 drops 102.7"
At 800 yards, the 7mm drops 157", the 300 drops 149.2"
At 900 yards, the 7mm drops 217", the 300 drops 208" low
At 1000 yards, the 7mm drops 291" the 300 drops 284"


With the 175 g Sierra SMK, Hodgdon says the 7MM will make 2750 fps and the 300 WM will make 3000 fps

At 600 yards the 7mm drops 80.9" and the 300 drops 70.4"
At 800 yards the 7mm drops 168.9" and the 300 drops 150.4"
At 1000 yards the 7mm drops 302" and the 300 drops 275"

[scotty99]

The .300 generates about 20% more recoil energy to achieve that though. There is no free lunch.

I have found the 7mag is the heaviest round most people can shoot in any quantity. I also think you'd be very hard pressed to find something in the real world that one will do but the other won't.

For what it's worth, the 7mm 160gr Nosler Accubond is the most accurate hunting bullet I have ever seen. Haven't tested the .30 cal version, but I suspect it is just as good.


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[Loneranger49]

I was just listening in and appreciate the dialogue! I am now looking for a good 7mm mag, probably a Remington 700! Best to all!

[Fjold]

The other disadvantage to the 7mm Rem mag is that the SAAMI average maximum pressure specification is 61,000 PSI while the 300 WM spec is 64,000 PSI. For reasons only known to Remington when they submitted it to SAAMI for certification they chose to spec it to the lower pressure.

BTW, I'm not a 300 WM fan boy, I don't own one. I do own a 7mm Rem Mag.

[RandyD]

For the same weight bullets, the 300 will shoot it faster and this shows up in the ballistics

Using the 150 grain Nosler Partition spritzer, Hodgdon says a few 7mm Mag loads will break 3000 fps while the 300 Magnum will break 3200 fps.

With a 100 yard zero, the drop from both cartridges are:

At 400 yards, the 7mm drops 24.9", the 300 drops 21.9"
At 500 yards, the 7mm drops 44.9", the 300 drops 40.8"
At 600 yards, the 7mm drops 72.9", the 300 drops 67.2"
At 700 yards, the 7mm drops 110", the 300 drops 102.7"
At 800 yards, the 7mm drops 157", the 300 drops 149.2"
At 900 yards, the 7mm drops 217", the 300 drops 208" low
At 1000 yards, the 7mm drops 291" the 300 drops 284"


With the 175 g Sierra SMK Hodgdon says the 7MM will make 2750 fps and the 300 WM will make 3000 fps

At 600 yards the 7mm drops 80.9" and the 300 drops 70.4"
At 800 yards the 7mm drops 168.9" and the 300 drops 150.4"
At 1000 yards the 7mm drops 302" and the 300 drops 275"

Excellent comparisons.

On a personal note, I went on a deer hunting trip to the Bear Tooth Ranch in Montana with two friends and we had unlimited depredation permits for does. I was shooting the .300 Win. Mag., the other two used 7mm Rem. Mag. and a 338 Win. Mag. We shot over 30 deer, and we limited our shots to long ranges. No shots were taken within 300 yards. All three calibers successfully downed deer at over 500 yards, and all three calibers equally put the deer down with one shot.

[ZuluDeltaWhiskey]

For the same weight bullets, the 300 will shoot it faster and this shows up in the ballistics

Using the 150 grain Nosler Partition spritzer, Hodgdon says a few 7mm Mag loads will break 3000 fps while the 300 Magnum will break 3200 fps.

With a 100 yard zero, the drop from both cartridges are:

At 400 yards, the 7mm drops 24.9", the 300 drops 21.9"
At 500 yards, the 7mm drops 44.9", the 300 drops 40.8"
At 600 yards, the 7mm drops 72.9", the 300 drops 67.2"
At 700 yards, the 7mm drops 110", the 300 drops 102.7"
At 800 yards, the 7mm drops 157", the 300 drops 149.2"
At 900 yards, the 7mm drops 217", the 300 drops 208" low
At 1000 yards, the 7mm drops 291" the 300 drops 284"


With the 175 g Sierra SMK Hodgdon says the 7MM will make 2750 fps and the 300 WM will make 3000 fps

At 600 yards the 7mm drops 80.9" and the 300 drops 70.4"
At 800 yards the 7mm drops 168.9" and the 300 drops 150.4"
At 1000 yards the 7mm drops 302" and the 300 drops 275"

Thanks for the stats! That's impressive.

[diver160651]

300 Win Mag vs 7mm Rem Mag

Guys some of this is way off base. Sure a crappy BC Bullet, driven faster seems better in a 300.. Take one of the better 7mm 168gr Bullets at .61 or .618 vers on of the better .308s 168s such as the SMK with .462 and you tell me how much faster the 300 has to drive the .462 to make things = @ 1500...

BTW I get just under 3200 fps in my 7mm.

We are splitting hairs, but the minute one makes blanket statements that one is vastly superior, be suspect.

Yes,I have both. If you only shoot middle of the road factory ammo then maybe things are a bit different.


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