And again, shot placement is the key. Below 2200fps and through to 1800fps (680 yards) shots must be kept well forwards in order to ensure clean killing. Discuss this article or ask a question on the forum here Muzzle velocity is rated at 2700fps, high enough to obtain shock on heavy game at close range and with enough bullet weight to deliver shock through heavy hide, muscle and bone- that is, providing a stout projectile is used. The 200 grain flat point is not all that well suited to the Weatherby but it can be put to use as a mild load for hunting medium game or for general practice. Are Lazarroni or Lapua calibers criticized because they are even faster than the Weatherby's? Projectile construction is another factor as this cartridge can place a great deal of stress on projectiles. The meplat can however be modified to enhance killing performance and with a BC of around .8 this bullet can afford to lose a whole point in BC without ill effect. The 235 TSX has a relatively low BC of .270. All are generally true to or within an acceptable range of their stated velocities. Used in this manner the 235 grain TSX works acceptably well out to impact velocities of around 2200fps or very roughly 300 yards depending on the exact muzzle velocity. In traditional Weatherby fashion, a Weatherby cartridge would outclass similar-caliber cartridges with regard to the performance of the cartridge. We do not accept returns on ammunition. The .378 Weatherby Magnum was designed by Roy Weatherby in 1953. 8:00 a.m. to 5:00 p.m. (MDT), Visitor/Service Center Therefore, while it can be enjoyable to push the limits, hunters must apply caution. Here’s how I look at it: Currently there are 5 Weatherby cartridges based on the same case: the .30-.378, .338-.378, .378, .416, and the mighty .460. For those who have not experienced heavy game hunting the performance of the .378 is comparable to using a .243 or .25-06 to tackle Red or Mule deer. Between 2400 and 2200fps (330 yards) wounds are wide but we may see a slight delay in killing. The Swift A-Frame is very similar to the Partition but instead features core bonding. Weatherby Customer Service representatives are available to assist you: Monday through Friday It is on heavy game that this increased power comes into its own. When used on heavy game the increased power level of the .378 Weatherby can be considered ‘justified’. If the Lapua has any "advantage" it is in the fact they have adopted it as a "Tacticool" round across the pond, while the .338-378 Weatherby remains a "Fudd Gun" round, and that ain't cool! I am kicking around the idea of a long range rifle in a Browning X-Bolt Long Range Hunter carbon fiber in 300 Win or Remington Sendero II in 300 Rum or a 30-378 Weatherby in a Mark V Carbon fiber. The animal was almost fully broadside (just quartering on), the bullet broke the humerus (leg raised to show break). As for the trigger, the higher the recoil, the less we want any preloading on the trigger to accentuate this. In the quest for a larger case Roy Weatherby utilized the 416 Rigby as a parent case design.For the sake of marketing a belt was added to the .416 Rigby case which, combined with the double radius shoulder, gave it a true ‘Weatherby Magnum’ appearance. PO Box 6630 A quick mention of caution must also go to the one load produced by Nosler featuring their 260 grain Accubond bullet at an advertised 3100fps. The current Mk V Weatherby rifle chambered in .378 does however come fitted with a much needed muzzle brake. The Speer Grand Slam is a premium bullet but after having had several bad experiences with this bullet I cannot recommend its use, especially at .378 Weatherby velocities. Loads were to be developed to exceed 4000 FPS & as close to 5000FPS*. To some the very thought of such a loading may sound absurd but when used in this manner it helps prevent dust collecting on one’s rifle while proving immensely effective on medium game. I love the 30-378 though and look forward to some real long range hunting. The 250 grain Gameking can normally handle heavier body weights but when loaded well over 3000fps there is a risk of shallow penetration. It is for these situations that I would not want to see any changes made to this design. This can be used in the same manner as the Sierra 250 grain bullet. The .338-378 shoots a little flatter than the .340 Wby. Obviously there are limitations to this approach. Shipping not available to P.O. The GMX has extra notches within its ogive resulting in smaller petals which can allow the ogive to swage back in a more uniform manner. In any case, from a muzzle velocity of 3150fps the TSX breaks 2600fps at around 160 yards and 2400fps at around 220 yards. Unlike the .416 Ruger and .416 Winchester cartridges, the .416 Weatherby Magnum requires an extra-large bolt face and a large magnum action to contain it due to its ove… Those who panic and pull the trigger under threat will do so whether the trigger is 4lb or 2lb. Although the Weatherby company have released their cartridges from proprietary status it is rare to find another maker of .378 brass purely because of its unique case dimensions. More information on this subject can be found in The Practical Guide To Long Range Hunting Cartridges. There is nothing "wrong" with the Lapua round per say, but from a ballistic standpoint the .338-378 Weatherby leaves it in the dust. I'm looking at either a 375 H&H Mag or the 378 Weatherby. The high sectional density of the 350 grain bullet helps immensely with straight line penetration, adding some reliability when hunting game in the 600 to 700kg (1300 - 1540lb) weight range. On light framed game this bullet does its best work down to impact velocities of 2600fps or around 250 yards. From a muzzle velocity of 3000fps the 300 Gameking breaks 1800fps at around 675 yards. Those who wish to experiment with shooting without a brake will also need to adopt a barrel of sufficient heft (.825” muzzle) and aim for an all up weight of 11.5lb or more. Hopefully this will prove to be a very reliable projectile and especially well suited to the .378 Weatherby. Thanks. Shoot, reload and get back on target. But again, I like to push the envelope a bit. In each and every case, my advice when using these projectiles is to load as fast as the rifle will accurately allow, get close and break bone. Required fields are marked *. On heavier game a homogenous bullet can prove more effective. I'll give the 338 its do, but either way you will have one hell of a slayer. It is certainly interesting to see how this projectile has progressed over time and good to see Hornady have been willing to make improvements as needed. I also want enough gun for out west hunting or for larger bear. While this load is acceptable for hunting large bodied deer readers are advised to refrain from using this projectile on heavy game. Weatherby, Inc. This cartridge was also used as Weatherby’s base for the design of the .460 Weatherby. When used on medium game and also large bodied deer and antelope species the .378 delivers tremendously disproportionate to caliber wounding at ordinary hunting ranges which translates into extremely fast killing. As a long range bullet for large bodied deer and antelope the Speer is simply outstanding down to 1800fps. The .378 Weatherby is an exceptionally good cartridge for hunting large game. If the Gameking is forced to penetrate through more than a foot of tissue and bone combined with high impact velocities it sheds a great deal of energy. Thus, in a sense, with the .416 Weatherby we … Yes, the .378 Weatherby will generate considerable free recoil, an average of 77 ft. lbs. Of the available designs the 270 and 300 grain bullets have great merit for use on game weighing over 450kg and up to 900kg (2000lb) while the 350 grain bullet is best reserved for the heaviest of game. I like the 30-378 cal. If you enjoy the speed of the Weatherby cartridges, and can handle the recoil of the .340 Weatherby—the larger .338/378 Weatherby is even more ferocious—there is nothing wrong with using it, though I highly recommend the use of premium bullets. This will, over the coming weeks and months, be incorporated into the Weatherby line up, replacing the previous unbonded round nose soft point. Under ideal conditions, I would normally wait for a true quartering on shot and aim at point B, the joint intersecting the humerus and scapula. Re: 30-378 Weatherby VS 338L I have shot both and own the 30-378. But again, wind drift is a concern. As I have described many times now, the key is to get close (inside 100 yards) and aim small. Nosler would have been better to do away with the bonding all together (Ballistic Tip) and create a load purely for extended range. Having said this, the .378 does place a great deal of strain on the Partitions. The 300 grain bullet (one of my go-to bullets) is effective on game weighing up to 600kg (1300lb). Boxes, International Addresses, AK, CA, HI, MA, CT, IL, NY nor DC residents. But alas, on dangerous game the Woodleigh does not have the same level of reliability that can be derived from a homogenous bullet design. For the sake of marketing a belt was added to the .416 Rigby case which, combined with the double radius shoulder, gave it a true ‘Weatherby Magnum’ appearance. Suggested sight settings and bullet paths. A TRULY THE MOST AWESOME HUNT AND RIFLE, Your email address will not be published. Where some of my shots are 100yrds in some areas out to 300+ in open fields. Nevertheless, they can work very well. The King Kong of the standardized .416 cartridges is the .416 Weatherby Magnum, which was introduced in 1989. For my own part, I am glad the two brands are not identical as each offer unique performance. This projectile is at its best at impact velocities over 2600fps. The Partition also has fairly good reach, being immensely effective on appropriate game out to ranges of around 360 yards or 2200fps. The 350 grain Woodleigh is designed to be used at impact velocities no higher than 2500fps. This is a wonderful cartridge for those willing to take the time to get to know it. Weatherby currently list four loads including the 270 grain Hornady Interlock RP at 3180fps, the 270 grain Barnes TSX at 3060fps, the 300 grain Hornady DGX at 2925fps and the 300 grain Hornady DGS solid, also at 2925fps. The .416 Weatherby Magnum is a very potent cartridge. Developed by Roy’s son, Ed, the 416 is a necked up version of the 378 exceeding the power and energy of the 416 Rigby, the 416 Remington Magnum and the 458 Winchester Magnum. The bonding is too weak for heavy game work yet too soft for extended range work. As an example of stock design the CZ action can be mated to a Bell and Carlson Varmint stock. Your email address will not be published. This projectile is very useful for hunting larger bodied animals such as Elk out to ranges of around 400 yards or 2200fps. Due to the fact that Hornady have only just released the bonded DGX, I cannot yet comment on its performance. The casing, inspired by the .416 Rigby, is based on the .378 Weatherby Magnum, necked up to accept a .416 inch diameter projectile. Having said this, long range shooters are advised to look to the Rocky Mountain ULD bullet for dedicated long range killing. The case design was inspired by the .416 Rigby cartridge and features a belt and Weatherby’s signature … All ammunition is shipped domestic ground and an adult signature is required. Having said this, best results are obtained at impact velocities over 2400fps. Cartridge Type: Height: 2.913" Width: 0.579" Average FPS: 2720 Average Energy: 6373 Average Gr: 388 Recoil: 4.77 *Casing image above is an artist rendering and not a real photo of .416 Weatherby Magnum Ballistics cartridge. The further one shoots the more resistance this bullet needs in order to promote expansion. To accomplish this task Weatherby relied on one of the largest commercial sporting cartridge cases available. Copyright © 2007-2017 Terminal Ballistics Research, Ballisticstudies.com, Achieve success with the long range hunting book series & matchgrade bedding products, MatchGrade Synthetic Stock Stabilizer instructions, The Practical Guide to Long Range Hunting Rifles, The Practical Guide to Bolt Action Rifle Accurizing & Maintenance, The Practical Guide to Long Range Hunting Cartridges, The Practical Guide To Long Range Shooting. Any thoughts. The .378 Weatherby Magnum case is essentially a belted version of the .416 Rigby case necked down to .375. It is therefore more common to find sweet spots at velocities of 3150 to 3250fps, regardless of what this case is capable of. Up until the creation of the .375 CheyTac (post 2002), the .378 Weatherby was the world’s most powerful .375 caliber cartridge. From muzzle velocities of around 2900fps the two loads will hopefully work very well together. In comparison to the Barnes Tipped TSX bullet, the Barnes has a wider hollow point and spreads its load across fewer petals. The brass Interbond bullet was the worst, suffering bullet blow up on impact. Nevertheless, there are some limitations. WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. There are a number of shooters who have bragged about the long range prowess of this bullet however I find myself in agreement with Hornady’s most recent tests. Post subject: Re: 300 RUM vs 30-378 Weatherby. Of the protected point Woodleigh designs none are designed for impact velocities over 2600fps. This bullet is very useful for open country work on large thin skinned game weighing up to 600kg (1300lb). The Hornady 270 RP-SP is a relatively soft bullet of conventional construction. The bullet in the Norma round is a 410-grain Woodleigh Weldcore, loaded to a muzzle velocity of … Between 2600 and 2200fps (450 yards) the Speer produces clean but sometimes delayed kills on light framed game animals depending on shot placement. Some whitetail bucks in the area I'm at weigh 200lbs before being dressed out. The difference between a 30-378 weatherby mag and 30-06? As per the norm with the medium bores this cartridge does its best work on a diet of H4350 (ADI 2209). Double-barreled firearms first became prevalent during the … Sheridan, WY 82801 USA, We are located at 1550 Yellowtail Drive, Sheridan WY 82801. The utter ridiculousness of this is truly amazing. TRACKING AND RUNNING INTO A PISSED OFF 650 LB LION AT 28 YARDS IN DENSE BRUSH-AFTER SEEING HOW TOUGH THEY ARE- 400 GRAIN DID NOT PASS THRU THE LION. Too often I hear of hunters speaking about the large target area of heavy game, advertising their lack of skill to all who will hear. Weatherby have done well to adopt the 270 grain TSX for the .378 which produces a good balance of wounding versus penetration on heavy game. Owners of .378 (and RUM) rifles are advised to select stouter protected point available in 235, 270, 300 and 350 grain weights. But with an accurate rifle and careful shot placement it is possible (though not always so - depending on exact game weights) to anchor game on the spot. The 378 Weatherby … 375 JRS-----140 " (based on 8mm Rem or 416 Rem necked) 375 Impr. TALKING TO 3 PROFESSIONAL HUNTERS- ALL SAID 416 IS THE BEST FOR DANGEROUS GAME- THE REASON I BOUGHT IT. Swift projectiles include the 250, 270 and 300 grain A-Frame’s along with their new Break away solids (untested at the time of writing). Ed Weatherby, Roy’s son, designed the heavy-game cartridge by necking up the .378 Weatherby Magnum to .416. Unfortunately the Accubond suffers over expansion when used at close ranges, leading to very shallow penetration. 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