The next challenge came in the form of internal ballistics. Having said this, those who wish to use Woodleigh bullets on game weighing no more than 450kg (1000lb) will find that the 300 grain round nose produces immense trauma and is the more versatile where game weights vary by a good deal. Those who wish to push this further need to understand that the Speer can really struggle to produce any form of expansion between 1800fps and 1600fps (800 yards). But again, I like to push the envelope a bit. 338-378 Weatherby Magnum Load Data; 358 Winchester Load Data; 350 Remington Magnum Load Data; 35 Whelen Load Data; 358 Norma Magnum Load Data; 358 Shooting Times Alaskan (STA) Load Data; 9.3×74 R Load Data; 9.3 X 62 Mauser Load Data; 9.3x64mm Brenneke Load Data; 375 Holland & Holland (H&H) Magnum Load Data; 375 Ruger Load Data ; 378 Weatherby Magnum Load Data; 375 … Additional chamberings include many of Weatherby’s own proprietary magnum cartridges like the 7mm Weatherby Magnum and 30-378 Weatherby Magnum. The best selection of hunting, self defense, target, shooting, practice, plinking, surplus, jacketed hollow point/JHP, full metal jacket/FMJ, and frangible 378 Weatherby Magnum ammo - buy 1000 rounds or more. That's not a lot of shooting for a varmint shooter, but it is more rounds than some hunters fire in a rifle during a lifetime. Chambered in .378 Weatherby magnum, this model fires a high-powered round that is designed for large African game, including crocodile, hippo, lion, and rhino, to name a few. The Lapua comes with a case capacity of 114.2 gr of water, while the 338-378 Weatherby holds 9.5% more at 125 gr of water. Load the slowest powder in a drop tube to get max pressure . The Partition also has fairly good reach, being immensely effective on appropriate game out to ranges of around 360 yards or 2200fps. The author takes stock of rimfire rifles he's known and loved. While developing his .378 magnum back in the 1950s, Roy Weatherby was experiencing ignition problems with primers then available, so he went to Federal, which came up with a solution in the form of the 215 primer. 175 Gr. Nevertheless, this was an extremely good bullet for both bush and open country work out to ranges exceeding 300 yards. In EHJ’s 2016 June/July issue Dan Turvey, Jr. and I debated the merits of .30 cal vs. sub .30 cal rifles. Simple burn rate chart and lean to vv 500 powders if you can , imr is temp sensitive , etc . The 270 grain Speer BTSP loaded to 3150fps is an exceptional killer of large bodied game. Following modifications and provided the mods are truly successful and that game animals are of a large size as to offer suitable resistance this bullet has some merit for extended range hunting. New Rifle Review: The Weatherby 6.5-300 WBY Mag. Abide by those three rules and you can live happily ever after with Roy Weatherby's biggest .30 caliber cartridge. Suggested sight settings and bullet paths. Those who hunt in mountainous terrain where ridge to ridge shots are to be expected will greatly appreciate the heavy Sierra bullet. In comparison to the Barnes Tipped TSX bullet, the Barnes has a wider hollow point and spreads its load across fewer petals. Sometime later, the availability of an extremely dense propellant with an even slower burn rate increased velocity to just beyond 6,000 fps. I long for the day when either Hornady or Sierra revisit this bullet weight. I would love to have a .30-378, it seems like a giant .22-250, in the reloading manuals I have they say you can load a 110 gr. The next important chapter in the life of the .30-378 magnum came later. Weatherby continue to utilize this design (at least at the time of writing) simply because it maintains the Weatherby look. Gun Review: Weatherby Mark V Accumark in .308 Win. Between 2600 and 2200fps (450 yards) the Speer produces clean but sometimes delayed kills on light framed game animals depending on shot placement. Both work well on large bodied deer or antelope weighing up to 600kg (1300lb). As for the trigger, the higher the recoil, the less we want any preloading on the trigger to accentuate this. For large game weighing up to 450kg (1000lb), consider 2200fps as the cut-off point. And since the 215 primer is available from Federal as a reloading component, it is the logical choice for handloads as well. Unfortunately the traditional Mk V stock tends to accentuate felt recoil. Projectile construction is another factor as this cartridge can place a great deal of stress on projectiles. Weatherby Mark V Accumark Bolt Action Rifle -The name says it all. 338-378 Weatherby Magnum Powder Minimum Maximum Charge (grains) Velocity (fps) Charge (grains) Velocity (fps) *RL 22 90.0 2696 98.0 2890 US869 110.5 2736 118.5 2948 H1000 92.0 2664 100.0 2826 RL 25 94.5 2747 102.5 2906 338-378 Weatherby Magnum Suggested Bullet Use Suggested Bullet Use 250-grain LRX BT Sectional Density .313 Ballistic Coefficient .602 C.O.A.L 3.750” 250-grain TSX FB … The stunned mullet look has no place in this game. Obviously there are limitations to this approach. ©2020 Outdoor Sportsman Group. If hunting heavy game, get close and aim small, keeping shots well forwards as a means to maximize energy. I generally use the slower burning 4831 burn rate powder when developing mild loads (also when loading the Sierra flat point) but have also used full charges of H1000. Kills inside 200 yards were spectacular, though meat damage was severe at close ranges. is not only a classic round. Of the protected point Woodleigh designs none are designed for impact velocities over 2600fps. Buy a 378 weatherby online. There is a small risk of petal loss when the GMX is used in this manner though this makes little difference to its performance. Who makes dies for a 7mm-378 Weatherby mag? And again, shot placement is the key. 30-378 Weatherby Magnum: $1,899.99. From a 26” barrel comfortable velocities include 3350fps with 225-235 grain bullets, 3300fps with 250 grain bullets, 3250fps with 260 grain bullets, 3150 to 3200fps using 270 grain bullets, 3000 to 3050fps with 300 grain bullets and 2700 to 2800fps with the very long 350 grain Woodleigh projectiles These velocities are roughly 50 to 100fps faster than the .375 RUM with individual bore tolerances muddying the waters. And yet, for the discerning sportsman searching for a rifle that is built as well as or better than many custom guns and shoots lights out, it’s a product that offers great value. Beyond 220 yards this bullet is best suited to large bodied non-dangerous game which offer plenty of body weight resistance to aid expansion and hydraulic wounding. |   Between 2400 and 2200fps (330 yards) wounds are wide but we may see a slight delay in killing. Readers are also asked to avoid any magical high weight retention bullets that supposedly dump maximum energy yet retain 100% weight, defying physics without a shred of common sense. One cannot say that the .243 is overpowered for deer and the same applies here. Driven hard the A-Frame sheds some weight and SD, but manages to smash though heavy bone and achieve very wide internal wounding. Rifle Shooter Digital Staff - April 11, 2019. 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. However, that extra velocity comes and the associated … The .378 Weatherby is an exceptionally good cartridge for hunting large game. To say otherwise only highlights the inexperience of the hunter. This will, over the coming weeks and months, be incorporated into the Weatherby line up, replacing the previous unbonded round nose soft point. But barrel life with this cartridge can be longer than some would have us believe. But to utilize it the hunter must get past the initial grandeur of high power and see it for what it really is. Its massive case holds so much powder that Federal designed its super-hot 215 primer to handle the load. Woodleigh produce both round nose and protected point Weldcore projectile designs. In lesser cartridges this bullet can at times be somewhat annoying. Sell your 378 weatherby for FREE today on GunsAmerica! The.338-378 Weatherby cartridge uses the.378 Weatherby case, necked down to take a.338 bullet. From an easy muzzle velocity of 3200fps the Hotcor is an emphatic killer of medium game down to an impact velocity of 2400fps or around 250 to 260 yards. Growing up with Weihrauch air rifles, I was spoilt with a quality Rekord trigger from an early age, and really appreciated the two stages offered by the design. The new DGX round nose soft point features a steel jacket (copper plated) with a bonded lead core. 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. Arguably the most interesting option is the new 6.5mm Weatherby RPM. 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. 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. 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. Mag and .338 Lapua, which are $2,700. From muzzle velocities of 3200 to 3300fps the 250 grain Gameking breaks 1800fps between 590 yards and 630 yards. The 250 grain Gameking can normally handle heavier body weights but when loaded well over 3000fps there is a risk of shallow penetration. Shoot, reload and get back on target. The 338-378 Keith-Thomson Magnum is a quarter of an inch shorter than the full length 338-378 Weatherby Magnum, this was because they thought it was better balanced with the slowest powder generally available at … Used in this manner the Accubond can be highly effective. During a conversation with Ed Weatherby in late 1991, I urged him to start chambering his rifles for the big cartridge and offer loaded ammunition. The heavy Barnes bullets are designed for large, tough game. The new cartridge was named the .378 Weatherby Magnum and was introduced to the public as a Weatherby proprietary cartridge in 1953. Unfortunately, I cannot yet report on its performance however it is my hope that this projectile will perform admirably on heavy game, backed with the DGS (solid) for follow up shots. 175 Gr. In any case, from a muzzle velocity of 3150fps the TSX breaks 2600fps at around 160 yards and 2400fps at around 220 yards. The .378 Weatherby cannot be fireformed from existing case designs (apart from the .460 Weatherby). Designed to replace the 375 Weatherby Magnum, deep penetration and bone smashing power are the calling cards of the 378. Sierra’s 350gr SMK is designed for target shooting only. In this cartridge clash, Brad Fitzpatrick takes a look at the .300 Win. All are generally true to or within an acceptable range of their stated velocities. Having said this, the .378 does place a great deal of strain on the Partitions. Match bullet. 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. $1,699.97 Delivery Method. This projectile is at its best at impact velocities over 2600fps. The .378 Weatherby is a monumental cartridge in its size, power, and capabilities. Joined … For my own part, I would suggest that a very stout 250 grain bullet can produce hydrostatic shock on game weighing up to 600kg or 1300lb, but on heavier game a 270 to 300 grain homogenous bullet can prove more effective. Treat this with absolute caution. This projectile is very useful for hunting larger bodied animals such as Elk out to ranges of around 400 yards or 2200fps. The .30-378 Weatherby Magnum is a .30 caliber, belted, bottle-necked rifle cartridge. For the sake of posterity, the now obsolete 225 grain Hornady Spire point Interlock was an excellent choice. Regards. This product is no longer available. From muzzle velocities of around 2900fps the two loads will hopefully work very well together. Again, such arguments only highlight one’s inexperience. For hunters contemplating building a custom .378, a straight and fat varmint style stock is the key along with a light and crisp trigger. And so it happened that Uncle Sam got its ultra-velocity cartridge and Roy Weatherby picked up a bit of extra money. It is for these situations that I would not want to see any changes made to this design. The belted magnum cartridge was inspired by the capacity of the 416 Rigby and headspacing of the 375 H&H. The 235 grain Speer Hotcor can be put to good use in the 378. The .338-378 Weatherby Magnum started out as the wildcat cartridge, .338-378 Keith-Thomson Magnum during the early 1960s.Keith and Thomson are Elmer Keith and R.W. Hornady have just now (Oct 2017) released their 300 grain round nose bonded DGX bullet. 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