It is based off the parent case of the belted .300 H&H Magnum by narrowing the neck to accept the .277 inch (7mm) bullet. The contents of Rifleshooter.com are produced for informational purposes only and should be performed by competent gunsmiths only. We were unable to come anywhere near the velocities they have achieved . Hard to find!!!! From a Factory standard 26” barrel, realistic velocities for the .300 Weatherby include 3450fps with 150gr bullets, 3300fps with 165-168gr bullets, 3250fps with 178-180gr bullets, 3150fps with 190 grain bullets, 3050fps with 200 grain bullets, 3000fps with 210 grain match bullets and 2900fps with 220 grain bullets. Really like the 300 Weatherby after 35 carrying the same MK 5 deluxe model. A Leupold 4-12x scope was installed in Leupold mounts and rings. For comparison, various 150-grain loads from Winchester list muzzle velocity at 3,260 fps and 180 grainers at 2,960 fps. Question on barrel length, I like the Howa 1500, 22" bbl. .300 Weatherby Magnum in a 24-inch Barrel: Warning! Putting a relatively short barrel on this caliber is really self defeating. The barrel is 24 inches long, the weapon weighs 6.75 pounds, and has a 3 round magazine capacity. it has a generic synthetic stock. The rifle is fired at 100 yards, from a bipod with a rear bag, for 5-rounds. We used the Federal 215 primer in Weatherby brass. ), which achieve muzzle velocities around 3000 fps, are at their best in a 24 inch barrel and 24 inches is the SAAMI standard for almost all American centerfire rifle calibers. I should mention the gun I am looking at comes in a 24 inch barrel only. The parent case is a .300 H&HMagnum by expanding it to maximum capacity. Good accuracy is easily obtainable with all of them. Fels, If I were a liberal I'd say," I hate it when people clutter things up with facts. The rifle will be used for Elk and Oryx, if a permit can be drawn. I have 300 Weatherby rifles with 24, 26, and 30" barrels. This is slightly longer than the specified maximum for this cartridge. As with all Weatherby weapons, this rifle is extremely high quality and very accurate. It is in nice condition with a few miner handling marks! (Handloader Issue #212) Be Alert: Publisher cannot be responsible for errors in published load data. This has been a long time coming. You can argue that the 16 inches of additional drop from the 18-inch barrel at 600 yards is a huge thing. I just bought a Weatherby 300 wby mag with a 26 in barrel. Using these numbers in an exterior ballistics program, we find that this bullet will go subsonic past 1100 yards. We used the Nosler Reloading Manual #4 as a guide. But the .300 Winchester Magnum is more efficient, and does better in a 24-inch barrel. Today’s advertised ballistics have changed from the original loads and are more realistic as to actual velocities from a production rifle with a 24-inch barrel. It worked fine in this rifle. LOL. Rifleshooter.com and its authors,do not assume any responsibility, directly or indirectly for the safety of the readers attempting to follow any instructions or perform any of the tasks shown, or the use or misuse of any information contained herein, on this website. The Weatherby website states that for their guns with an initial velocity of 3001-3500 the change in velocity is approximately 30 ft/second/inch of barrel length. The short answer is, you gave up very little in practical performance. So you shouldn't be losing any velocity from the published charts. (in house only) Condition : Very Good; Description. Minor wear on this rifle. The 16-inch barrel also delivers greater energy on impact regardless of the ammo type. Thousand yards with a 308 is a real feat. Note that at 300 yards -- a long shot for most of us -- the bullet from the 18-inch barrel drops only an inch more than that from the 24-inch barrel. One lousy inch. A 1:8 twist works best with the light-weight supersonic rounds. Colt Sauer Sporting Rifle, 300 Weatherby Magnum Description: Colt Sauer Sporting Rifle, 300 Weatherby Magnum with scope mounts, 24 inch barrel. Inspect the pictures carefully. Even that is not perfect science. Company Directory (307) 675-7800. It is in nice condition with a few miner handling marks! Barrel twist rate matters as well, it’s another factor to consider when choosing barrel length and determining 300 Blackout effective range with your rifle. Weatherby Vanguard has a 24" bbl. As an aside, the 6.5x300 Wby Mag will be chambered in the Vanguard for 2018. Brass for the .240 is readily available from Weatherby dealers. my load today is the Sierra 180gr Pro Hunter with IMR 7828 powder @ 85.0 /p> in 2011 I had to send it to Weatherby to be rebarrel. According to Weatherby's 2018 Catalog, the 257 Wby, 7MM Rem, 300 Win/Wby Vanguards will come from the factory with a 26 inch barrel. The following data was developed in a Remington 700 rifle. The .300 Weatherby Magnum really needs a 26-inch barrel to reach its full velocity potential. Bullet Style: Partition Use: Deer, Elk & Moose Sized Game. SOLD Rifle Caliber:.300 Weatherby Magnum Manufacturer: Colt Sauer Serial Number: 27597 … Rifles from manufacturers such as the RemingtonModel 700, Winchester Model 70, and Ruger No. Bullet weights of 87, 90, 95, and 100 grains are currently offered. Just curious how it will affect the Mark V sales. Mag., if you were the guy on the mountain in Wyoming with one of these rifles you were always selected to block. (going from 22”-24” will show a larger increase than going from 24”-26”). 62 grains of H4350 and gets 2700 fps. The velocity and standa… I'm in agreement that most of the time, the difference is not enough to be concerned about. We used the Federal 215 primer in Weatherby brass. I am wondering if anybody has any 257 Weatherby Ballistics and trajectories. Condition is Used. 300 Weatherby Magnum Rifle Cartridge by Nosler Inc. 300 Weatherby Magnum Rifle Cartridge by Nosler Inc. Nosler - Bullets, Brass, Ammunition & Rifles ... Production Rifles Barrel Break-In Procedure; ... Ballistics. Note: Test rifle was a Weatherby Mark V with 24-inch barrel and Weatherby cases used throughout with CCI 250 primers. The ballistic performance based off four grains for velocity is 3,528 ft/s (110 gr), 3,338 ft/s (130 gr), 3,242 ft/s (140 gr), and 3,161 ft/s (150 gr). Inspect the pictures carefully. Gold $$ Contributor. Comparing a brand new "average" barrel to one with say 200-300 rounds through it (two barrels from the same model for argument's sake) is not entirely apples to apples on a velocity comparison for this reason. Good sharp rifling. By far the most popular and versatile Weatherby cartridge available. Remington 700 300 weatherby Factory 24 inch Barrel. 300 WEATHERBY MAGNUM. First off every barrel is certainly different as I found out, I have two Mark V SS 300 Wby's and my brother has one, all 3 rifles are identical, with Wby 180gr TSX ammo adv vel is 3240. New Mexico will be the place of use. Condition is "Used". Weatherby Vanguard S2 Sporter 300 WBY 24 inch Barrel With Scope (used) We buy, sell, trade & pawn guns. Using 3000fps as a reference, even a 100fps difference is only a 3.33% variation. These are useful all-around barrel lengths for such cartridges. Weatherby Mark V Backcountry .300 Weatherby Magnum 26" Barrel 3 Rounds Accubrake... Weatherby Mark V Backcountry .300 Weatherby Magnum... Our Low Price $2,195.29 ... Weatherby Mark V Accumark Elite 6.5 Wby RPM Bolt Action Rifle 24" Barrel 4 Round... Weatherby … I have harvested game from North Carolina to Alaska. I would suggest that this should be the minimum length barrel for this caliber. So a .300 Weatherby Magnum round exits the barrel with kinetic energy equal to the energy required for linear vertical displacement of 4070 pounds through a one foot distance, while a .300 Winchester Magnum round exiting the barrel has energy equal to the amount required to displace 3520 pounds over the same one foot distance. Reactions: JLT and Zero333. I know there was some talk in the past on this site about 24 vs 26 inch barrel ballistics with the 257 but wanted to see if anybody has any new info. it shoots Ramshot Magnum loads at … 1 are able to use the .300 W… The 300 Weatherby Magnum had the flattest trajectory, longest range and the greatest killing power of any 300 magnum on the market until the 30-378 Weatherby Magnum came along. FeMan CA Hunter's Ed Instructor. The highest velocity standard cartridges (.243, .25-06, .270 Win. Remington 700 300 Weatherby Factory 24 Inch Barrel. Apparently their test rifle had a 26 inch barrel. Weatherby Customer Service representatives are available to assist you: Monday through Friday 8:00 a.m. to 5:00 p.m. (MDT) Visitor/Service Center 9:00 a.m. to 4:00 p.m. (MDT) Customer Service (307) 675-7840. Due to the extreme light weight and accuracy, this is the best .300 Win Mag rifle for hunting. The 300 Weatherby originated as a blown-out, “improved” 300 Holland & Holland Magnum, so its case is about a third of an inch longer than the shorter Weatherby Magnums. Blued black finish. Quote from: SMITTY78 on March 11, 2017, 06:38:08 PM, Quote from: fels340 on March 21, 2017, 09:41:27 AM. Condition is Used. Increasing barrel length will increase velocity of the cartridges named in the 25-35fps range depending on which one is used and(6.5 Rem Mag holds about 60gr H2O, 6.5-06 holds almost 67gr, more powder means more increase per inch) and the initial barrel length. The magazine was long enough to handle this and none of the bullets touched the rifling. Written inquires can be mailed to: Weatherby, Inc. PO Box 6630 Sheridan, WY 82801 USA Cartridge Type: RifleHeight: 2.811\"Width: 0.532\"Average FPS: 3229Average Energy: 4074Average Gr: 176Recoil: 2.63Power Rank: 5.68 of 20 The .300 Weatherby Magnum was designed by Roy Weatherby in 1944. I also have a Remington SPS SS 700 in 257 wby with a 26 inch barrel. 1:10 twist. I would like to add that unless you have a custom barrel with a highly polished bore, velocity should increase very slightly with a given load as the barrel gets used and gets "burnished" as I like to call it. I glass bedded the action and free floated the barrel. This is my 24 inch barrel 300 WSM (plus 2 inches for the brake). I glass bedded the action and free floated the barrel. Also some 300 + yard hole punching. A Leupold 4-12x scope was installed in Leupold mounts and rings. The .270 Weatherby Magnum was designed in 1943 by Roy Weatherby. Also you would have a non belted cartridge and a short action that has extra rigidity. So even Weatherby says only about 60 ft/sec. Either way, imo, this is a great move by Weatherby. Factory sporter contour 1:10 twist Blued black finish. With an identical rim diameter to the .30-06 it is a relatively simple proposition to re-barrel any standard action rifle to .240 Weatherby magnum. Remington 700 300 weatherby Factory 24 inch Barrel. Of course, if the 6mm is measured in a 24" barrel and the .240 in a 26" barrel, which is the case with factory load ballistics, the difference goes up to about 300 fps..240 Weatherby factory ammunition is offered only by Weatherby. When I first started using the .300 Weatherby Magnum back in the early 1980s, there was a notable velocity difference between it and the slower .300 Winchester Magnum. Drift is only an inch more, too. Good sharp rifling. The Weatherby Vanguard Sporter is guaranteed to shoot a 3-shot group of .99″ or less at 100 yards (SUB-MOA) when used with specified Weatherby factory or premium ammunition. I hope this new weatherby barrel is as good as the German Sauer one that was on it. I have two 257 wby mags one is a 24 inch vanguard SS with the24 inch barrel, it shoots a Ramshot magnum load of 76 gr at 3594 fps, 100 gr Barnes tsx. I used one of my light gun barrels that was 30 inches and cut her back. It came from the factory with a 24 inch barrel, and was stocked in a synthetic stock. The following data was developed in a Remington 700 rifle. Hard to find!!!! 25fps, 50fps or whatever minor deviation won't make any difference between the animal dropping or running, as long as you hit it where you should. 300 Win Mag vs. 300 Weatherby Mag Guns & Ammo Discussion I have owned the 300win mag, the 300WBY, and the 300RUM. Not enough to worry about. I experienced a 20 inch barrel is more consistently accurate because of the harmonic impact. The test protocol was simple. Sent from my SM-G965U using Tapatalk Some good points made by y'all here. Rather than using the same 2.5-inch case as the 257, 270, and 7mm Weatherby Magnums, the 6.5-300 Weatherby is the 300 Weatherby necked down, hence its name. If a short barrel is what you're looking for than You'll get the same velocity out of a 22 inch barrel chambered in 300 WSM as you will with a 24 inch barrel chambered in 300 Win Mag. Based on the 300 H&H Magnum, the 300 Weatherby delivers 300 more fps than its British cousin. I have just purchased A new stainless steel Vangaurd with laminated stock along with 115 gr NBT. 20% restocking fee on all returns.

It's far more important to know how that particular rifle hits the point of aim. It came from the factory with a 24 inch barrel, and was stocked in a synthetic stock. I've been looking at ballistics tables for some of the more popular ammo discussed in this caliber and I believe the tables I've seen are predicated on using a 24 in barrel. with the Hogue stock. Factory sporter contour. The Weatherby 6.5 RPM...............what the 264 Win Mag wishes it was ! The only way to get a real comparison is to shoot a rifle with a 26" barrel, take two inches off the barrel and shoot it again with the same loads. All bullets were seated to an over all length of 3.600 inches.

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