7mm Remington Magnum: Celebrating 60 years!

In this video I talk about the very successful 7mm Rem mag. I talk about it's history and why it became a huge success. Hope you enjoy the video!

[@erictiry6483]

In my opinion. This cartridge is probably the perfect choice. It will do just about everything.

[@MTMILITIAMAN7.62]

A wildcatter named Art Mashburn from Oklahoma had created a 7mm Mashburn Super Magnum by shortening the .300 H&H case to 2.6 inches and necking it to .284 cal. Warren Page used the Mashburn Super Magnum to great success with a 160 gr bullet traveling 3200 fps. It was the Mashburn that Page brought to Remington for commercialization. But while interested in the concept of a 7mm Magnum, Remington was looking for something else. The Mashburn had a slightly longer case and significantly more capacity than the 7mm Rem Mag. It is similar to the 7mm-.300 Win wildcat, and it operates at similar pressure, 65,000 PSI. Remington wanted the M700 to be the people's rifle, and for their new 7mm Magnum to be the people's cartridge. They were aware the reputation the .264 had quickly developed as a barrel burner and they knew magnum recoil levels would limit cartridge acceptance. Around the same time, the legendary Jack O Conner had given a .275 H&H Magnum to another wildcatter named Les Bowman, who became enthralled by the cartridge's performance and had developed his own wildcat based off the .338 Win necked down to .284 cal. Bowman had impressed a friend of his named Mike Walker at Remington with this cartridge. Remington did some testing with the cartridge on the Bowman Ranch and decided it was just what they were looking for. They kept pressures to a modest 61,000 PSI to prevent it from burning barrels and to keep recoil levels similar to the .30-06. This allowed very respectable performance while increasing market acceptance. The 7mm Rem Mag doesn't punish the shooter to achieve its incredible performance, but rather relies of the excellent BCs of the 7mm bullets. While it only achieves 100 to 150 fps over the .30-06 at the muzzle, the significantly higher BCs of the 7mm bullets mean the 7mm Rem Mag has as much retained energy at 200 yards as the 06 has at 100 yards, and has as much energy at 500 yards as the 06 has at 300 yards. Because the 7mm's advantage over the 06 increases with range, the 7mm Rem Mag has about the same advantage over the 06 at 500 yards as the .300 Win Mag. This means the 7mm Rem Mag hits like a .30-06 at the shoulder and a .300 Win down range; as close to something for nothing as you get with physics.

[@451whitworth4]

The 61K PSI was not the original pressure that the cartridge was introduced with. Original 1962 loads in 26" barrels were 150gr. @ 3260 fps and 175gr. @ 3020 fps. It was lowered to 61K PSI in the 1970's after too many unexplained weird pressure events were happening in both ballistic labs and in rifles. The 150gr. load was lowered to 3110 fps and the 175gr. to 2860 fps. There seemed to be a strange trend of an occasional excessive pressure spike from one round in otherwise identically loaded ammo. This has also been noticed with the .243 Winchester in ballistic labs.

[@Therionx]

Great video , Love the 7mm ! Never met anyone that hated it .

[@stephenkennedy3145]

Could possibly be the best hunting caliber ever

[@ReloadingWeatherby]

Definitely has a claim for it.

[@whiteyfisk9769]

I love my 7 rem mags, but if there has to be one and only King as the best all around North American round, thatd be 300 win mag. It does well in all the categories. 7 is close, but falls short in the real heavy bullets.

[@b01tact10n]

This is my online radio that i listen to while Im handloading😁👍👍 Im currently fine tuning my uncle's 160 Accubond as I finished fine tuning the 175 Partition for his M70 in 7RemMag for this September hunt. Ive never developed that type of accuracy @300yds. DAMN!

[@MrJpatterson30]

Excellent video. Thanks!

[@ReloadingWeatherby]

Glad you liked it!

[@Eric--zs6um]

My uncle inherited my granddads 7mm Mag 700 Rem first year produced. It's an awesome rig with triggers work done. Still have 1 box factory rem ammo. Much better than my 721 .270 as far as fit and finish. Keep vids Rollin

[@ReloadingWeatherby]

That's a keeper!

[@rockylavigna5977]

Totally great video, thank you

[@ReloadingWeatherby]

Thanks!

[@John-bp5zo]

Great vid!! My first ever Whitetail buck was taken with this cartridge. What is really cool is that I shot it with a handload I made. Now, I am not sure how big on the scene Speer bullets are today but, my handload was a 160 grain Speer Mag Tip. It was loaded at a modest velocity for hunting in the Upper Peninsula of Michigan's dense forests. Very accurate loading!!!!

[@ReloadingWeatherby]

Thanks for sharing John. Do you still have that rifle?

[@bustabass9025]

I've handloaded 140 grain Ballistic Tips in my 7 mag for thirty years. It's just like when I order a steak, medium rare, fries, and a Caesar salad...always. If it ain't broke, I don't try to fix it.

[@eddielombera5862]

I’ve only owned 2 cartridges, 300 win mag and 300wby, I can confidently say I’m a 300wby fanboy now, but I’m getting my first ever 7mm rem mag next week on a browning x bolt long range. It was a tough decision between a 7mm and .270win but ultimately I wanted a good flat cartridge for open country in California but less of a barrel burner than my 300wby

[@ReloadingWeatherby]

I bet you will love that 7mm mag! Enjoy!

[@cw2a]

Good one Austin!! Its always been a favorite of mine too. Its just a couple years older then me! 😜😝🤘🏼 Mine lives on 160g Speer/Nosler.

[@ReloadingWeatherby]

What velocities are you getting with the 160 gr?

[@AWFPowerWash]

Great cartridge, thanks for the informative video

[@ReloadingWeatherby]

Thank you for watching!

[@beavisbrowne3497]

🎂🍦 to the 7 mag...I like his bigger and smaller .284 brothers, however fine cartridge without question

[@VitoBb1978]

I’ve had a love affair with the 7RM for over 20 years. My very first rifle was a Weatherby Vanguard series (1) it produced groups that I’ve covered with a quarter. The original loading back in 1962 was the 160 Nosler Partion, with IMR-7828, running @ 3100 FPS, although that load has been reduced to 2950 FPS in today’s factory loading’s. It still puts a smack down on anything that walks on four legs.

[@ReloadingWeatherby]

Impressive hand load, thanks for sharing

[@Dfleuryoutdoors]

I just got a CVA cascade xt. I was torn between a 300 mag and 7mm mag. I already have a 300 and im set up for reloading but i want a wanted a 7mm. Ended up getting the the 7mm and im loving it. With the factory break it has less recoil than my unbreaked 308. 140 maker TREX's at 3200 fps should be great on deer

[@richcoleman6305]

Roy had it beat 22years sooner. And the 58'bolt on the Mark V is still superior in every way. Also its taken 80 years for companies to make a better trigger than a weatherby.

[@robertmajors1737]

I have two 7mm RM. One is a 1963 Rem 700, the other a Ruger M77 from the mid 70's. I've killed every big buck I've ever taken with the Ruger, only one has moved more than a couple steps. I love the cartridge for whitetail, and my dad took an Alaskan Caribou with one. It's a really good cartridge despite some peoples' misgivings about it.

[@ReloadingWeatherby]

Thanks for sharing

[@kweeks10045]

I have reloading manuals that I've used for 50 years. I got my first 7mag in the 1970's and a listed load was 71gr of H4831 with a 160gr bullet. The Partitions never shot well in the gun, so I used Sierra bullets. I think the max load listed these days is about 66gr of H4831. I guess liability won.

[@tracymccreary1550]

Less bowman created the 7mm rem mag in, I believe 1963 the dys for the cartridge,back then were called 280/338 magnum, then remington bought the idea and called it the 7mm rem mag. Which, other than the 270 win the 7 mag is my favorite round.

[@joshjohnson6163]

7mm Remington magnum has a pretty wide power range, it can be loaded with soft recoiling loads all the way up with hot sniper ammo that's in the 300 winchester mag ballpark.

[@rockylavigna5977]

It was a complete failure for me. In 1975 I purchased a Weatherby Vanguard Deluxe chambered in 7mm Rem Mag.The gun is an absoulute knock out, Blonde stock rosewood accents simply beautiful. Everybody had 7 rem mag it was crazy.Remember there was no internet and no way of gathering info everything then was word of mouth and your own research and trails. The gun shot straight however I cannot remember the bullets I was using. The first buck I shot that year was very dissapointing the bullet entered the deer and never did exit to say it underperformed would be about accurate. I just put the gun away and never looked at it again for about 45 years. This beautiful gun needs another chance,I did take it to the range a couple of weeks back and did not have to touch the redfield scope dead on, that was very satisfying.I did purchase a few more weatherby 7 rem mags and will give this caliber another try, obviously things have changed. At that time I went to the 06 and never really liked the caliber, I did shoot numerous deer with the 06 but results were never that spectacular. My favorite hunting guns are the 280 with the 150 gr core lockt and the 300 weatherby 180 gr core lockt when you hit deer with these two calibers with these bullets it is like hitting them with sledge hammers believe it or not the 280 actually looks like it delivers more energy to the deer than even the 300 weatherby very immpressive.I have used every bullet out there why does the core lockt over perform for me? I shot a deer this year with a sst not really excited about this bullet. Comparison to the core lockt and the interlock are they similar?

[@ReloadingWeatherby]

The Core loct bullet is a standard cup and core just like the SST. The good about a cup and core bullet is that it expands extremely well. Some describe it as explosive on impact. Which can really wreck an animal.

[@ardispeace1596]

L got my Left handed model 700 in 7mm Rem Mag in December 1978 it cost $255 and retailed for $299. I looked at the Weatherby 7mm Mag. but it retailed for $600 back then. Been reloading Hornady 139gr (or) Sierra 140gr bullets in it since 1979. They run about 3200 fps with a charge of 66grs. of IMR 4350. I had a 300 Win Mag in a Savage 110 shot it twice of the bench knotted my glasses of both times. Sold it.

[@ReloadingWeatherby]

Nice, Do you still have that Rem 700 rifle?

[@ardispeace1596]

@@ReloadingWeatherby Yes, I do. It still shoots great.

[@MrJtin69]

Good vid

[@ReloadingWeatherby]

Thanks

[@cw2a]

It really is man!! GOOD JOB!

[@PeteMiller]

@Reloading Weatherby...what is the book you are using for reference? I've seen it used by a number of people and I cannot seem to find the info, so I can procure one for myself! Thanks in advance.

[@ReloadingWeatherby]

Hornady reloading manual

[@PeteMiller]

@@ReloadingWeatherby MUCH appreciated!!! (I should have figured that one out…but never got enough of a view to really figure it out).

[@matrix5175]

I owned and hunted with a 300 win mag for years and I will never knock the cartridge because it was an excellent round and killed deer like lightning with a 150 grain sst handloaded to about 3300 fps. Not one deer ever took another step after getting hit with that round. But I ended up needing to sell the rifle one year when money was tight. When I recovered financially, I decided to buy a 7mm rem mag instead of replacing my 300 win mag and now after all the years hunting and loading for the 7mm rem mag, I actually prefer the 7 mag over the 300. My pet load is a 162 grain eld-x loaded with reloder 26 doing 3200fps at 12 ft from the muzzle. That is an incredibly flat shooting round and with the high bc of that bullet (.630) it retains more energy at long range than the 300 win mag and kicks less to boot. I would probably choose the 7mm rem mag now over the 300 win mag every time unless I was hunting dangerous game like bear. The 7mm rem mag combined with the powders of today really give it quite a step up in performance over a 30-06 and give it true magnum performance of over 500 ft lbs more energy than the 06 while still remaining just about as easy on the shoulder as the 06. It’s definitely my favorite cartridge to reload for right now.

[@ReloadingWeatherby]

Were you the one talking to me about getting crazy velocities with the 162 ELD-X?

[@matrix5175]

@@ReloadingWeatherby I have mentioned it a couple times. I have a Remington model 700 with a 26” barrel and I have a buddy that also has a Remington model 700 with 26” barrel and we were both getting very similar velocities with our handloads. We got 3234 with retumbo but accuracy was not as good in either one of our rifles with it so we stuck with reloder 26. We were right at 3200 fps with it and the 162 eld-x and I was getting consistent 1/2” groups and he was getting 5/8” groups with his. That load has been the most accurate long range load I’ve ever had. I’ve been able to make shots at long range with relative ease with that load. It’s been a confidence builder for sure.

[@matrix5175]

@@ReloadingWeatherby I’ve been really wanting to get some of the alco bullets and see if I can get some good accuracy with them. They have unbelievably high bc with a 168 grain at .803, a 180 at .860, and a 195 with a bc of .932!! I’ve already plugged the numbers into my ballistics chart and if I could get close to the velocities I think I can get, these bullets will have exceptionally good trajectory, carry more energy to 1000 yards than most any other magnums(like 1700-1800 ft lbs still), and have less than 3 minutes of wind correction at 1000 yards in a 10mph wind. They would be game changers for sure if I could get decent accuracy and velocity out of them.

[@Mr.Lawton534]

Where can i get a 7mm bergara? I looked at the s20 but heard its kind of heavy

[@ReloadingWeatherby]

Which Bergara rifle you looking at? I see plenty of them at my local stores

[@Mr.Lawton534]

@@ReloadingWeatherby b14 or a wilderness,i just bought a hornady reloading book something nice for my kids to read or something useful to have now an days

[@Mr.Lawton534]

@@ReloadingWeatherby i was looking a tikka also but heard too lightweight is not good also for big bullets.

[@Mr.Lawton534]

@@ReloadingWeatherby did you start with rifles on your own or was it a family pass-down thing?

[@Mr.Lawton534]

@@ReloadingWeatherby the mark 5 gorgeous on wood but a little over my budget(1,500)tops

[@nasirbhamjee7339]

I can't decide between this and the 300 win mag for the next rifle 🤔. I'm looking for a Canon.

[@ReloadingWeatherby]

What are you going to hunt with it? Which one are you leaning towards?

[@bustabass9025]

Both are excellent cartridges, I own them both. You can't go wrong with either. Guaranteed, if you go with the 7, you're going to eventually add the 300. Then, when you really want to "piss in high cotton...", the 300 Weatherby will find its way into your safe. Ask me how I know! 😌

[@Eric--zs6um]

It's like picking between 2 corvettes. Black or silver.

[@Eric--zs6um]

@@ReloadingWeatherby gun shop up the road had an 8mm Mag last time I was there. Even ammo for it. Been couple months. CANON!

[@MrJtin69]

If youre looking for a cannon get 30-378 weatherby or a 300 rum and hand load

[@frankiejones4816]

I would choose the 7mm Remington magnum. I have the 300 weatherby magnum. Both are good. Just get both But there's a new kid on the block it's call the 7mm prc It's parent cartridges is from the 300 prc. My first big game cartridges was 7mm weatherby magnum nope I take back it was the 7mm Remington magnum. Later I got the weatherby. And much much later I got the 300 weatherby magnum. I like all three.oh I also got the 7mm Winchester short magnum. I later lost that to my daughter. She wanted so bad I couldn't refused I like the 7mm they are my go to calibers

[@ReloadingWeatherby]

I've seen the specs for the 7mm PRC. It's a little bit more powerful than a 7mm Rem mag. I was hoping it would be a bit more powerful. Should be a good one

[@kalebgoodwin493]

7 mm wby mag more hp than the 7 rem mag?

[@ReloadingWeatherby]

Oh yeah, about 150-200 FPS faster

[@davidevaroli7344]

7mm Remington Magnum born November 5 , 1962

[@ReloadingWeatherby]

Thanks for giving me the actual date.... guess my video is a little premature

[@davidevaroli7344]

@@ReloadingWeatherby 7 mm RemMag was presented together with the rifle mod. 700. Thanks for the videos posted, very nice. Keep it up. Soon💪👏

[@texpatriot8462]

If it didn't headspace off the belt, it would be perfect.

[@ReloadingWeatherby]

Which cartridge is your number 1?

[@texpatriot8462]

@@ReloadingWeatherby I am building a 280AI as the next best balance of ballistics and recoil. I reload and the belt is an ender for me.

[@whiteyfisk9769]

Are you a competition shooter?

[@georgiadawg9064]

Why introduce a cartridge 20 years after the king of the 7mm and then make it slower? It is cheaper though