In Praise of The .30-378 Weatherby Magnum

Leupold RX-1200i TBR Compact Digital Laser Rangefinder With 119360


DNA (Digitally eNhanced Accuracy)
True Ballistic Range (TBR)
Quick Set Menu
Advanced OLED Technology
CR2 Lithium Battery
6X Magnification
Choose from three different reticles:
Built-In Inclinometer
Fully Multicoated (RX)
Clicking Fast-Focus (RX)
Scan Mode (RX)
Fold Down Rubber Eyecups
Actual Magnification: 6.00 x
Objective Clear Aperture (mm): 22.00 mm
Max Range (Reflective) (yd): 1215.00 yd
Max Range (Trees) (yd): 900.00 yd
Max Range (Deer) (yd): 800.00 yd
Min Range (yd): 6.00 yd
Linear Field of View (ft/1000 yd): 320.00 ft
Angular Field of View (degrees): 6.00 degrees
Twilight Factor: 11.50
Weight (oz): 7.80 oz
Length (in): 3.80 in
Width (in): 1.40 in
Height (in): 3.00 in
Exit Pupil (mm): 3.60 mm
Eye Relief (mm): 17.00 mm

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Michael Patrick McCarty Gives a Thumbs Up Just After Making A Killing Shot On A Mountain Goat in The Snowmass-Maroon Bells Wilderness of Colorado with a .30-378 Weatherby Magnum. Best Rifle for Mountain Goat Hunting
Mr. Weatherby Does It Again on a Colorado Mountain Goat Hunt. Photo by Rocky Tschappat.

October 3, 2015

The Colorado High Country will test the boundaries of heart and soul of any hunter, and the outer limits of rifle ballistics too. I hunted mountain goats there in September of 2015, and if their was ever a caliber made for such a task it is the .30-378 Weatherby Magnum.

Originally designed for the military in 1959 by Roy Weatherby, it was not available to the general public as a factory offering until 1996. I suspect that the majority of big game hunters have still never heard of it, even though it was used to set world records for accuracy at 1,000 yards and held that record for decades. It remains the fastest .30 caliber ammunition on the market.

I have a friend that is a big fan of this cartridge, and he is an old hand at long-range precision rifle shooting. He once took an elk at 750 yards, and when he heard that I had drawn a goat tag he all but insisted that I give it a try. He said that this was probably the closest it would ever get to a mountain goat, and he wanted a picture of the two together.

Now that’s a buddy and a pal that you can count on. There are not a lot of people in this world that would hand over a $2000 rifle with a finely engineered scope and a $150 box of shells and encourage you to go play in the rocks.

The thought of attempting a shot over several football fields stacked end to end is one that I would not generally consider very seriously, but then again I had never shot a rifle quite like this. After all, that’s exactly what this rifle was built for, and reason enough to own one.

I had my opportunities too. On this trip I had to pass on some really big billies, but not because they were at 500 yards or more. Shot placement is always important, but in goat hunting it is what happens after the shot that is of paramount importance.

Each time the goat was in a spot which would have made recovery impossible without ropes and climbing gear, and my head said no while my trigger finger desperately wanted to say yes. More than one trophy goat has stumbled and fallen a long, long way down the mountain after failing to be anchored by what appeared to be a great hit.

It took several days to find one in a reachable spot. As it turned out, there was no need to worry. I shot my Billy with a 130 grain handload at 350 yards, and their was never any question about the end result. It simply never knew what hit it, and was down and out on impact. The round got there in one hell of a hurry too.

The .30-378 Weatherby Magnum is truly a high performance hunting caliber. You may wish to take one along on your next mountain hunting adventure.

I know I will.

 

Best Rifle for Mountain Goat Hunting. The .30-378 Weatherby Magnum Mark V with Synthetic Stock & Bipod & Ported Barrel. Photo by Michael Patrick McCarty
The .30-378 Weatherby Magnum Mark V with Synthetic Stock & Bipod. Photo by Michael Patrick McCarty

 

Best Rifle for Mountain Goat Hunting. A Cheat-Sheet to Die for. These Yardages Correspond With Hashmarks and Post In The Rifle Scope For This .30-378 Weatherby Magnum. 770 Yards? Photo By Michael Patrick McCarty
A Cheat-Sheet to Die for. These Yardages Correspond With Hashmarks and Post In The Rifle Scope. 770 Yards? Photo By Michael Patrick McCarty

 

Best Rifle for Mountain Goat Hunting. .30-378 Weatherby Magnum Cartridge and .270 Winchester Rifle Cartridge by Comparison. Photo by Michael Patrick McCarty
.30-378 Cartridge and .270 by Comparison. Photo by Michael Patrick McCarty

 

Best Rifle for Mountain Goat Hunting. A hunter picks his way down a steep mountain slope, while rifle hunting for rocky mountain goat in the maroon-bells snowmass wilderness in colorado's gmu 12. Even a .30-378 Weatherby Magnum can't help you here.
Where Angels, and Goat Hunters, Fear To Tread
Best Rifle for Mountain Goat Hunting. Two hunters pose with a Rocky Mountain Goat taken with a 30.378 Weatherby Magnum on a self-guided hunt in the Maroon-Bells Snowmass wilderness near GMU 12 in Colorado
Wet and Cold – But Happy!

 

Posted by Michael Patrick McCarty

For More Information on the .30-338 Weatherby Magnum see the Wikipedia Article Here

*You may also like our post A Mountain Goat Night and The Improbable Beast

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As it turns out, it does appear that I was able to take a very solid mountain goat for this unit. According to the Colorado Big Game Harvest Statistics for 2015, my goat was about 5 years old and had horns that were a bit better than average compared to other goats taken that year.

That’s some fine news, to be sure. Yet, I must tell you that in the end the length of the horns don’t really matter, at least to me. The real prize was the mountainous adventure of it all, and it’s a fantastic trophy no matter the score.

May you draw your own tag soon!

4 thoughts on “In Praise of The .30-378 Weatherby Magnum”

    1. Well, you have me on that one! That was my intention from the beginning, but the woolly buggers would not cooperate. The closest I could ever get was 340 yards. Needed some stronger medicine…

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