I am considering getting one custom made with a long heavy barrel >30” and a custom stock. Increasing the weight of a gun will, of course, reduce its recoil, everything … DieselvRR Member. These numbers are based on the use of stainless steel barrels. The Accumark features a fluted #3 contour barrel and hand-laid fiberglass stock with aluminum bedding blocks. Had an acquaintance that had a .30-378. Minuteman. Took approximately 1000 rounds and then all of a sudden it was toast. 30-378 Weatherby Mark V Accumark For Sale. case that was created by Roy Weatherby, during the 1950s. Joined: Jul 7, 2009 Messages: 4. The .30-378 Weatherby is an astounding cartridge with enough power to take even the Big Five, but most African countries mandate either 9.3mm or .375 caliber as the minimum for dangerous game hunting. Also could someone include some ballistics out to 1000 yards. Feb 24, 2018 171 34 West by God. Ballistically, the 30 Nosler is going to win most of the time at the expense of a relatively small amount of extra powder and barrel life. With the brake, it is loud but recoil is very light. The .30-378 WM was introduced in 1996 by narrowing the neck of the .378 WM. Reactions: Bender. The .30-378 Weatherby Magnum is based off the .378 Weatherby Magnum case that was designed in 1959 for ballistic testing in the U.S. Army to develop better armor for soldiers and vehicles. Lots of fun, good accuracy,at least the rifle is accurate), long barrel life and mild recoil for those 80 shot RMC courses or 60 round LR matches. PX … I’m seriously considering getting one. But the bigger 30-378 Weatherby types won’t do as well, being closer to the 1500-round figure. The .30-378 Weatherby Magnum, initially a wildcat cartridge, is based off the massive .378 Weatherby Magnum (same case as the .460 Weatherby Magnum!) BV88 Sergeant of the Hide. And the more powder in a case the shorter your barrel life is going to be. Simply put, burning more powder in an equally sized space will result in shorter barrel life. PX Member. 300 PRC - 1500 rds. Loud. Ready to put holes … New Jerseystan. That cartridge was developed upon request by the U.S. Government for determination of the resistance of various types of armor plating to penetration by high-speed … Low ratios generally result in the highest velocities, but all too often a slight gain in velocity is accompanied by a serious reduction in barrel life. I haven't … For chrome-moly barrels I would reduce these by roughly 20%. Following a proper cleaning procedure (bore guide) helps to reduce any unecessary wear. Years ago Handloader Magazine talked about a .30-.50 cal they built. Actual barrel life is subject to firing rates, shooter's idea of what 'shot out' means, the barrel material, and other factors. Thread starter Bullthrower338; Start date Jun 18, 2017; Bullthrower338. Not surprisingly, the 300 Ultra Mag has a reputation as a barrel burner. … The .17 and .50 calibers are rules unto themselves and I’m pressed to predict a figure. … AH legend. Never was shot without a muzzle brake. Used 20 rounds for the barrel break in and cleaning, then about 70-80 more for load dev. Barrel life on it was 50 rounds IIRC. … However, the .30-378 is the hardest hitting of all the popular ultra-long range rifle cartridges. Joined Sep 20, 2014 Messages 4,421 Reaction score 10,061 Location Houston, Texas and Alder, MT Media 176 Hunting reports Africa 2 USA/Canada 1 Australia/NZ 2 Member of Life Member Rocky Mountain Elk Foundation, NRA, Huntin' Fool, DSC and Pope and … The 30-.378 is a real blow torch to the chamber throat area. If I wanted faster I could upgrade to larger-cased cartridges like the .30-.378 Weatherby Magnum, which is a belted case. Ammo is not cheap. and kill shit at long range. I agree totally with you on this barrel burning BS. I’m looking at a Wby Mark V outfitter with a 28” barrel. I really want a lightweight hot rod rifle for backpacking the backcountry. Big capacity, small bore cartridges operating at very high pressure, such as the 6.5mm PRC, .26 Nosler and .30-378 Weatherby, are notorious barrel burners. Barrel life of the Weatherby 6.5-300 will probably suffer from the amount of modern day powder that is constantly used to fire the piece unless it is only sighted in once a … The 30-378 is a high velocity round with a lot of recoil. Now let’s talk about barrel life. Barrel life depends on more factors than just rounds fired. The .30-378 Weatherby had been around for decades as a wildcat cartridge based on the large .378 Weatherby Magnum case necked to .30 caliber. Joined Oct 7, 2017 Messages 4 Reaction score 0 Points 1. You should get 1000 rounds +\- of accurate barrel life. Barrel life was 800 rounds. 8 to 12 percent more powder isn't going to cut barrel life by over 60%. 12 January 2005, 16:50. Feb 25, 2018 #3 338 lapua no questions asked. Calibres which are excessively overbore often suffer extremely short barrel life. The consequence of burning a large quantity of powder and driving a bullet faster is poor barrel life and throat erosion all of which affects accuracy and usable life of the firearm. I actually have a Weatherby Mark V in 30-378 that I will be putting up for sale soon. Long range shooting is fun with it. Apr 17, 2005 264 1 N.W. The 30-378 is a fairly hot chambering and from what I have heard peak accuracy is lost after 800-1000 rounds. With somewhere near .200” of freebore, the 300 Win mag is going to use 75-78 grains of H1000 most of the time, compared to 83-85 grains in the 30 Nosler with the PRC in the middle. Weatherby Mark V Accumark Pro Left Hand Tungsten Gray Bolt Action Rifle - 30-378 Weatherby Magnum - The Accumark Pro now carries all the legendary performance of the Accumark, plus custom features driving it to the next level of performance. Due to this cartridge very large case capacity in relation to its bore size a 26 in (660.4 mm) long barrel as used in the “info box - ballistic performance” section gives not the most realistic examples of the .30-378 Weatherby Magnum or its ballistic twins ballistic potential, though the stated performance figures in this article are very credible. Sum dominus fati: sed sum princeps meae. 6.5 PRC 143 grain Hornady ELD-X- This short-action magnum cartridge - 6.5 PRC - is an excellent hunting and long-range target cartridge. Remember that a 25% increase in powder gives you a 10% increase in velocity, the remaining energy is used to … Bender Known Troll. Less velocity but barrel life of 2000 plus rounds . Since the two cartridges use the same diameter barrel, throat erosion occurs quite a bit faster with the 300 RUM because it has a lot more case capacity. El Deguello. In 2000 I purchased my 30/378 Wea mag. For chrome-moly barrels I would reduce these by roughly 20%. The .17 and .50 calibers are rules unto themselves and I’m pressed to predict a figure. Or, to fatter unbelted cartridges like Lazzeroni’s 7.82 (.308) Warbird or the current darling of the sniper community, the .300 Norma Magnum. May 18, 2010 #3 Re: 30-378 Weatherby VS 338L 338LM-more like 3500 rounds or more. How a barrel is treated will have a much greater effect on how long it lasts rather than charge weight. In 1998 Weatherby introduced it as a standard industry cartridge and began offering rifles and ammunition. Oct 7, 2017 #3 L. LTNZ New member. It was a shooter until I burned the barrel out. For a hunting rifle this probably doesn't matter too much. You may want to consider chambering to a 338 Lapua too. With the right bullet, the .30-378 approaches the .338 Lapua, and bullet choice is critical. The biggest knock on the 30-378 is barrel life (<1000 rounds). I have a 30/378 Accumark. Recognize what is in your sight, and that which is hidden from you will become plain to you. 300 RUM - 1100 rds. I am fascinated by the use of the HUGE .30-378 & .338-378 though. BARREL GRADES CALIBERS & TWISTS CHAMBERS CONTOURS PRE-THREADED & CHAMBERED BARRELS AR15 BARRELS LFAR BARRELS SAVAGE® REPLACEMENT BARRELS DROP-IN BARRELS for: RUGER® 10/22® & 77/22® DROP-IN BARRELS for: RUGER PRECISION® RIFLES NEW DROP-IN for RUGER PRECISON® RIMFIRE NEW Alter nut DROP-IN BARRELS. Lt. Arclight Sergeant. The 338-378 will have quite a bit more barrel life than the 30-378. At that time all the detractors were talking about the barrel life of this cratridge . I haven't heard round count on a 338, but my educated guess would be closer to 2000. Anyway just some food for thought. 30-378 Weatherby Magnum Rifle Cartridge. In the 30-378's we use Retumbo powder, Fed 215 match grade primers, and the Barnes TSX which have proved to be the most accurate hunting bullet we have tested. And the more overbore a cartridge is, the shorter the barrel life of the rifle. Find your best price for 30-378 Wby Mag Ammo | Cheap 30-378 Wby Mag Ammunition - AmmoSeek.com Search Engine 2020 Yes, I know the barrel will not last forever, and I’m good with the long pencil barrel. The 30 378 has a little more horse power but it beats you up. More barrels are ruined by foolish "break in" methods, than by being shot out. These numbers are based on the use of stainless steel barrels. I would definitely recommend the Proof research barrel, I have one in 300 Norma that is shooting well so far. Barrel cost was more per shot than ammunition cost. That is true at both ends, of course! Easy to load for and 30 cal always has the hottest new bullets when something new pops up. Posted: 12/15/2019 10:16:45 PM EST Person I worked with had one, he put a 32" barrel on it, his entire aim was to have a rifle that could be pushed to 5000 ft/sec. PX Member. Weatherby Mark V Accumark Stainless Bolt Action Rifle - 30-378 Weatherby Magnum - If you are looking for a quality, craftsmen built Weatherby Mark V and want new features for rugged durability and long-range accuracy look no further than the Mark V Accumark. Looks like the 30-378 might have a tad more recoil..... 50-140. Minuteman. But the bigger 30-378 Weatherby types won’t do as well, being closer to the 1500-round figure. Abbreviated Name: 30-378 Wby Mag However, using the barrel life estimation spreadsheet (assumes same barrel, same firing rate, same 'shot out' criteria), if all were shooting heavy for caliber bullets at near max pressure: 30-378 - 800 rds. A high expansion ratio gives an indication of good barrel life; a low ratio means short barrel life. A carbon fiber stock provides excellent stiffness and lightweight attributes for the shooter looking for magnum range, but wanting to cut ounces. snake284, Aug 9, 2012 #16. I will likely rebarrel it to the same caliber but am playing with going with a 338 Edge or 338/378. However the 30-378 takes a little over 100 grains of powder to do it where the 300 takes 83-85 grains. Case life and barrel life are expected to be short for the .30-378 because of the high velocity and the great amount of powder burned per shot. Any firsthand experience with this caliber is welcome. The cartridge rates higher on the overbore index than the .264 Winchester Magnum and the 7mm Shooting Times Westerner but less than the 7mm RUM and the .30-378 Weatherby Magnum. Is the 30-378 wby mag a good choice for ultra long range bench rest? Well I went ahead and bought one. Know of a few guys who use them for long-range benchrest, and know that they've been used as long-range elk cartridges. Member Joined Jul 2006; Posts 19424; EE 100% (14) ID, USA. I have only fired about 300 shots in the 30 and 150 in the 338 and have not noticed any deterioration in accuracy. 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