Home Forums Hunting & Shooting Ask The Gunwriters 7mm Rem Mag Vs the 270 Wby

AGW,
I'm sure somewhere you have stated it but what was the typical game you culled in Australia? My wife would love to go there someday and maybe I can work in a hunt..........
I always figured there weren't to many deer size game to hunt. My Bad. I thought bush big-game was limited to 'roos, dingo's and buffalo.

Thanks for posting, I much enjoy your comments and experience!!

Dave

"Yes and in my 26" barrel 7MM it's over 3450 fps"

That's cookin!

Interesting, on the Hodgdon site, the fastest load for the 7mm RM with 140s is 3138 fps. pretty conservative!

That statement SCREAMS 270 Wby.

BMT

Indeed it is conservative, that or there running the speeds out of a 9" barrel....grins

Dober

The Nosler site has speedier data...

I think what it really comes down to is that I just want a 270 roy.

I can see it now.

win 70
brown precision stock
stainless # 2 bbl (douglas from it&d)
swarovski ph 8x56 (don't try to talk me out of this 'cause I already have it at home)

All I need to do is swap the tube and swap scopes and I will be good to go...

Just wish I could find a shootable buck to stand still long enough for me to shoot him with my new 257 roy!

Having owned and loaded for both, shot them extensively out to 500 yards,at the end of the day, there is no difference between them. You will load a 140 in the 7mag to 3200- 3300 without incident; and a 130 in the 270 Weatherby to 3300-3350 or so. Sight them the same way, and drop to 500 yards is identical.I have not hunted with a 270 Weatherby, finding the differences between them to not be worth keeping them both.So, the 270 weatherby is gone.

I've been hunting the 7 Rem Mag since the 70's; if you have one, you have the other. I would not rebarrel a 7 mag to 270 Weatherby in the hopes I would gain anything at all.

I just read Allen's post on the cartridge, and agree with what he said, since I have encountered the exact same thing.He is correct. I have two 7 rem mags in the safe right now that vary a good deal in the charges they take to deliver a certain level of velocity with 140 and 160 gr bullets.Throat lengths, barrel dimensions, bullet,etc all have a tremendous bearing on delivered velocities, and I have experienced this with the cartridge many times.

BUT, in just about every rifle, I have always been able to duplicate what I regard as pretty standard velocities in the 7RM which is to say 3200-3300 with a 140, and 3100 or so with a 160 WITHOUT undue pressure signs, reasonable case life, sterling accuracy and great field performance.To take it a step further....

Because I have built and used any number of 7 mags, 270's, various 300's, etc. deliberately varying not only throat length, but internal barrel dimensions as well, I feel very comfortable stating that the 7 RM IS NOT UNIQUE IN THIS REGARD.It is just that the cartridge is WAY more popular than many other cartridges, is made by different manufacturers,given different throats, barrel styles and dimensions, etc. to such a degree that uniformity across the board is hard to come by, and I think this is why data for it is "dumbed-down". You have to work up loads suited to YOUR rifle; if you do, it will perform just like a 270 Weatherby.The powder charges may vary from rifle to rifle to reach the same velocities, but I have always been able to get there.

I have seen the same thing with...the 270 Winchester,300 win mag, 300 weatherby,and 280 Remington, to name a few.The 300 win mag is one of the easiest cartridges to load; but I have seen throat length and barrel dimensions or type make a difference one rifle to another in that cartridge, as well.Ditto the 270.

Any body taking a hard look at the two cartridges will see that the 7RM and 7 Weatherby have about identical capacities; yet the 7 weatherby uses heavier charges, gets higher velocities. Ever wonder how come? Mostly, it's the throat length. Long throat a 7 RM, you'll get 7 Weatherby velocity, and likely your loads will resemble 7 Weatherby data.

Read Dober's comments as well; he is right, too.

Part of the reason I'm such a fan of the 7mmSAUM is that it's a relatively new cartridge and Remington has produced almost all of the rifles chambered for it in a few very short years.

Due to the resulting uniformity from that small lot of rifles and ammo you find pretty fair uniformity in velocity and pressure.

My load for 140gr Accubonds uses 53.5gr of Varget and yields right at 3100fps with way less recoil and muzzle blast than a 7mm Mag and all that out of a Model 7 with a truly short action a 22" barrel and an ultralight rifle.

I don't see the need for all that velocity when accuracy usually suffers above about 3100fps anyway.

If I want more violent expansion I just switch to Ballistic Tips in the same weight and POI doesn't change at almost any range.

What could be better?

$bob$

Bob: There is definately a benefit in uniform dimensions.

257Bob,

I know that factory ballistics for the 7MM Rem Mag are anemic at best; however, they were once more impressive. Like BobinNH, I can easily achieve 3100 FPS with 160 grain Partitions out of my 24" barreled Sako w/o a sign of pressure. I get way better than 3200 FPS using 150 grain Ballistic Tips, again w/o pressure. I have older 150 grain Core-Lokts that chrono over 3200 FPS.

When handloaded and fired in a good-quality rifle, the 7MM Rem Mag is all that and more. There is no doubt I can increase velocity in handloads (I got over 3200 FPS with Speer 160 grain Hotcore bullets, but they were hot!), but with what I not have I am happy as a clam!

The .270 WBY Mag is an excellent round, but by no stretch of the imagination is it superior to the 7MM Rem Mag. I would rather have the 7MM Rem Mag due to bullet selection and sectional density. But that's merely me.

Have you considered a 7 m/m Weatherby?

I have owned one since 1962, and I like it as much now as I did then.

I use the 140 grain Sierra at about 3200. The Sierra manual lists the load I use as giving 3385, IRCC, but my Chronograph says about 3180 to 3200. The barrel is a 24 inch Douglas with Weatherby throat and 1-12 inch twist. It will not stabilize 160 grain bullets, but I originally purchased it for deer and antelope, and the 140 grain does just fine on those.

Personally, and this is just my opinion, I would prefer the 7 Wby. over the 7 Rem. or .270 Wby.

To answer some questions;

Bullets I usd in 6mm:
70gn Nosler Solid Base
70gn Speer TNT
70gn Hornady SP
75gn Speer HP
80gn PMC SP
80gn Winchester SP
80gn Corelokt
85gn Nosler Solid Base
87gn Hornady SP
90gn Sako SP
90gn Speer SP
90gn Barnes X
100gn Winchester SP
100gn Hornady BT
100gn Sierra BT
100gn Hornady Flat Base
100gn Nosler Part
100gn Corelokt
100gn Sierra BT

In .257 Caliber:

75gn Barnes X
85gn Nosler B Tip
87gn Hornady SP
100gn Barnes XBT
100gn Speer SP
100gn TSX
100gn Nosler S Base
100gn Nosler B Tip
115gn TSX
115gn Partition
120gn Speer SP
120gn Partition.

In 6.5mm Caliber

100gn Hornady SP
100gn Sierra SP
120gn Sierra SP
129gn Hornady SP
139gn PMC Sp
156gn SP

In 7mm Caliber:

115gn Sierra HP
139gn Hornady SP
140gn Combined Technology
140gn Nosler Solid Base
140gn Barnes X
140gn TSX
140fb XBT
140gn Sierra SP
140gn Woodleigh SP
150gn Nosler S Base
150gn Partition
160gn Failsafe
160gn Partition
160gn Partition Gold
175gn Barnes X
175gn Woodleigh SP
175gn Sierra BT

As to the question of ranges taken, all of them from a few rock throwing yards out to hold over ranges.

As to the animals that can be hunted apart from Buffalo, Roos and whatever the 3rd animals was?

foxes, pigs, wild horses, (Brumbies) donkeys, Fallow Deer in 4 color phases, Rusa deer, red deer, sambar deer, hog deer, chital (axis) banteng, goats, roo's, wild sheep, dingo's, wild dogs, camels, and whatever I can't think of on the spur of the moment.

It works like this:

You knock on a property owners door and ask for permission to hunt. If he says yes, he usually asks you to thin out whatever is his problem animals. I have had some say, "If it eats grass or drinks water, shoot it on sight.

I have had others order me to go on a cull before I hunt. Not that good an idea because you can stir things up more than you want but that is the deal.

Asking and Aussie to remember a kill is like asking someone to remember a specific plate of ice cream you once had.

Kind of progressed a little since then. You remembe rthe best kills and the worst results.

Seriously, all the 25's through to the 30's are good for deer sized game but the original question related to the .270 Weatherby and the 7mm Remington.

I have seen, to use the term I was corrected on, more emphatic kills with the .270 Wby than the 7mm Rem. I have also seen more DRT kills with the 7mm Mauser than the 7mm Rem. I have seen no difference between the 6.5x55 and the 7mm Mauser on one condition, that is, that the bullets are at 129gn Hornady or heavier. Thos bullets I tested lighter than that were dismal failure requiring multiple shots to drop game.

Another point MD covered once I think; A feral goat is a much tougher animal than a deer of equivalent size. The hair is longer and dog like, with an angora under pelt and the skin is over a 1/4 inch thick around the shoulder area. Likewise, the tenacity of these animals is like shooting rabbit with a .22 short. They seldom go down no matter the cartridge until you go .30 cal or over.

Hope this clear a few points.

AGW

I agree with BobinNH..."If you have one you have the other."

I also believe that if you want one you should get one. You may ask yourself later why you did it because maybe you didn't gain anything but that would have been your choice and your consequences.

I passed up countless fine shooting irons in 7 RM to buy a 7 Wby for the sole reason that I just wanted one. Mine will push 160's to almost 3200 fps with it's 24" barrel. Yes, I had two inches whacked off of it before I ever fired it.

I love it and would never think of getting rid of it. Though it performs admirably with any bullet type or weight I run through it, I am going to settle on the 140 A Frames for serious work and 150 Scirocco's for utility. Serious work being Elk, Axis, Kudu & Bushbuck. Utility being Whitetail and Sheep.

So, to sum up, I think you should have a 270 Wby for no other reason than that's what you want.

It clears up some of mine, thanks, regarding the relationship of the 6.5 Swede to the 7x57. I apologize for having diverted the thread from its origin of "7mm Rem Mag Vs the 270 Wby," however.

My 7mm RM has a shilen bbl at 24" and was installed by an expert so I know at a minimum that the chamber is clean (was reamed with a good, spec, reamer). that said, I am not really into experimenting with loads these days and I really do not want to push the limits with sticky bolts and flattened primers.

that said, I know the 7mm will do just about anyting the 270 w will do and maybe more.

still, I like the idea of buying a box of 270 wby 130s and go hunt. will really come down to if I feel like spending the money and if I really want a 270w.

I was at walmart last pm and I looked at their rifle book. I found that the vanguard is available in the 257 wby but not the 270 so the idea of buying a vanguard in 270 is not in the cards.

time will tell if this itch needs to be scratched.

I still like the idea of a speedy 277 and I have the 300 mag for anything bigger (not that I have any plans to hunt elks any time soon)