270 Weatherby Mag

I had one for years, a custom on a VZ24 Mauser that Bevan King did up for me. It was one of the most effective cartridges I ever used on big game.

130 gr partitions at 3500 and 150 gr A Frames at 3200 fps were simply devastating. It was a few inches flatter shooting at 400 yds than any 7mm mag I ever used. Sighted in three inches high at 100 yd, it was less than eight inches low, and more than accurate enough to make clean kills at that distance.

All this in a 7 1/2 pound rifle with a 24 inch barrel.

Still going strong after 600 rounds down the tube, a fellow here in Whitehorse owns it today.
Ted
 
Why not? said:
I had one for years, a custom on a VZ24 Mauser that Bevan King did up for me. It was one of the most effective cartridges I ever used on big game.

130 gr partitions at 3500 and 150 gr A Frames at 3200 fps were simply devastating. It was a few inches flatter shooting at 400 yds than any 7mm mag I ever used. Sighted in three inches high at 100 yd, it was less than eight inches low, and more than accurate enough to make clean kills at that distance.

All this in a 7 1/2 pound rifle with a 24 inch barrel.

Still going strong after 600 rounds down the tube, a fellow here in Whitehorse owns it today.
Ted
Click to expand...

Similiar experience flatter than my 7 RM, 3460 FPS out of a 24" rechambered pre 64 Mdl 70. Killed instantly with 130 gr BT on deer and 130 partition on moose or elk. Have experienced a lot of calibres and the 270 Wby is definitely on the reaquire list and one of my personal favourites.
 
Here's what the 130 gr Partition looks like when sighted in dead on at 300 yards.

Range Velocity Energy Trajectory Come Up (MOA) Come Up (MILS) Wind Drift Wind Drift (MOA) Wind Drift (MILS)
0 3500 3536.0 -1.5 0.0 0.0 0 0 0
100 3247 3044.0 2.5 -2.4 -0.7 0 0 0
200 3010 2615.0 3.2 -1.5 -0.4 0 0 0
300 2785 2239.0 0.0 0.0 0.0 0 0 0
400 2571 1908.0 -7.6 1.8 0.5 0 0 0
500 2367 1617.0 -20.6 3.9 1.1 0 0 0

The energy at 400 yd is just under 2000 ft lb. The bullet always expands and penetrates well.

The 150 gr A Frame at 3200 is almost as flat.
Ted
 
It's really as close to a 7mm Rem Mag as it gets... the bullet is 7 thousands of an inch smaller than 7mm and the case capacity almost identical. In hunting scenarios with 'equal' rifles I doubt you will see any difference in performance. They push 140 grain bullets at equal velocity.
 
I've got a couple; a basically stock except for bedding Accumark and a custom 700 with a short throated #3 Gaillard barrel. The was a little finicky until I bedded it then it decided it liked everything as long as it was seated on top of a bunch of 7828. 3500 fps is witbin essy resch with listed loads for 130s, and it shoots so well at 3360 with 140 Accubonds that I just settled on the one load. Sighted in 325, one mill-dot smacks things around at 500 and the next dot takes care of 650. As blind chance would have it; I couldn't get an even 800 on my range and had to settle for 780. That's where the third dot drops them into the plates.

The other rifle have a shorter than standard throat, but will shoot 130 factory spitzers and spires without pressure signs. No pressure signs, unless you count 3700 fps on a chronograph as a pressure sign that is. ;) I suppose I have to count it though. With the long magazine and short throated I can seat 130 grain Sciroccos out to the lands , but it didn't really start shooting until I jumped them . It seems to like a sedate 3360 with the Swifts. Sighted 3" high at 100 puts it dead on at 325 and the B&C reticle
lines up at 4,5,6 and 650 at the post.

In many ways I don't know how much we've gained since 1946 or thereabouts.
 
Have a mark V deluxe with a Japanese barrel and fixed power leupold 7x scope no bi-pod. Good for my hunting purpose out to 330 yards then i'm glass limited. Beautiful gun, beautiful round. Why wouldn't you buy a 270 win though at 1/4 the $price for ammo and 6x the availability? If you find a beautiful rifle in 270 weatherby by all means buy it, I did and don't regret it. However I wouldn't seek out one for the couple hundred fps gain.

I'm glass limited (I hold myself to a high degree of accuracy 3 consecutive shots in a 8" group to be my range) and a better shooter could do farther shots with that scope but I can't shoot better groups without a better rest or scope.
 
My dad got his main hunting rifle rechambered to .270 wby years back. With a muzzle break it's quite novel to shoot. Great round, I agree, especially if the barrel is 1:8 - 1:9 twist. .277 has suffered a limited bullet selection for years, and though more heavy for caliber options are available now, .277 still lags the mainstream. Most .270 barrels are 1:10, and like 130-140gr bullets. At that weight .264 WM has a better B.C, and much cheaper brass. The same could be said for 7mm RM using 168+gr projectiles.

Small bore magnums confuse me a bit. So does shooting a 165gr out of .300 magnum. All other things equal, a .270 Win will give up ~100yd of effective range to the wby. The .257 wby is better to 500yd, the 7mm rem mag (or wby) is better at 1000. For someone with intermediate needs, it's the goldilocks cartridge! Right between the .270 win and the .270 AM (necked down .338 LM).

For me personally, if the .270 win is not enough, I'll be taking a real step up to 200gr+, .30cal+ and ~3000fps MV. If I'm burning 70gr of powder, well, bigger bores and bigger bullets simply use it to greater effect.
 
It's funny; each step up the the performance ladder is so small as to be pointless. But you move from 243 Win to 460 Weatherby by many of these small steps. I've got a 338WM and a 375H&H. Fast 30s do nothing I can't already or might need done right now.243 -257 are bit light for my needs. Part of the reason I reload is to shoot slightly oddball cartridges at reasonable prices. Same reason not everyone drives a Dodge Caravan I guess.
 
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