Test 1: 2800 fps "Full Velocity". We started our test at full velocity, which for this load was right at 2800 fps: Above Berger 133 gr Elite Hunter Bullet Full Velocity Cavitation, a "massive" impact. The high speed bullet mushroomed very well and weighed in at 84.2 gr, and so retained 63% of the original bullet weight.In stock and ready to ship! 5 reviews. $ 25.00 - $ 112.00. Ok quarter bore guys, we got you the rocket sled ready to run. 1-10″ twist 90gr Absolute Hammer™ is going to be fun for sure. Just think a 257 Weatherby Mag running at 3900fps. I think Roy has a grin right now. Absolute Hammer™s should be loaded with caution as they will not ...Re: 257 Weatherby Mag - BEST LOADS ! -73g of 7828, 75g of R25, or 71g of R22 under 100TTSXs. The above is with 215GM and Wby/Norma brass, which is around 30ish g lighter than std Remchester (hence thinner/more capacity). With Remchester 7RM or 264WM brass I usually end up about a grain off of the above. MV from my current two 257Wby rigs are ...2,612. Location. Wyoming. May 13, 2010. #2. The 7mm rem mag, 264 win mag and several others are all about the same and can be used for the 257, 270 and 7mm wby's. They are all just a little short though but after a couple firings they are the same length. The 257 wby stretches brass fairly quickly. S.Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .257 Weatherby Magnum (Berger Bullets Data) reloading data with 42 loads. Using bullets from Berger Match FB Target, Berger Match VLD Target or Match Grade VLD Hunting. Powders include IMR, Alliant, Vihtavuori, Norma, Hodgdon, Accurate, Ramshot.100g bullets is plenty power for antelope and deer out of the 257 WBY. But for longer shots, heavier bullets tend to buck the wind better and hit harder. Thats why we use them. ... Generally, load data from different companies is going to be different for a variety of reasons. Consider that bullet design, bearing surface, and alloy hardness all ...Aug 6, 2013. Messages. 4,345. Location. Arizona. Nov 9, 2015. #3. Duck, knowing no two rifles shoot a given load equally, both of my .257 Wby's do very well with H1000 and the 115 VLD. These are Wby rifles with the Wby freebore.About Hodgdon's Retumbo. From the manufacturer's product page: This magnum, extruded powder was designed expressly for the really large overbore cartridges such as the 7mm Remington Ultra Magnum, 300 Remington Ultra Magnum, 30-378 Weatherby Magnum, etc. Retumbo adds 40-100 fps more velocity to these cartridges when compared to other normal magnum powders..378 Weatherby Magnum - Published Manufacturer Loading Data Shellholders: Hornady #14RAMSHOT GRAND. A double-base spherical propellant, brining the latest propellant technology to the Ramshot family. With a density tuned for magnum cartridges, Ramshot Grand offers optimal load densities, which equal low extreme spreads and standard deviations. Shop Now.Discussion forum for all things firearms. ARs, handguns, rifles and hunting with firearmsI'm about to start reloading for my Ruger No 1 in 257 weatherby. I haven't been able to locate a modified case yet, so I was hoping to get a head start on popular COAL for these bullets I'm going to load - 110gr nosler accubonds and 100gr barnes ttsx. Nosler load data shows a COAL of 3.210" - that's where I was going to start unless I get some ...Reloading data for 378 Weatherby Magnum. Bullet: Nosler Partition 260 gr: Bullet weight: 16.8 g / 260 gr: B.C: 0.314: C.O.L: 90.5 mm / 3.563 # 44850: Gunpowder Charge Weight Velocity m/s ... Show all Submitted Loading Recipes Tipstrike Experiment in 7x66 Vom Hofe Preparing 204 Ruger Norma Brass Reloading ...Select A Caliber or Gauge Below To View Recipes. 25-06 Rem. 257 Weatherby Magnum. 264 Win. Magnum. 270 Weatherby Magnum. 270 Win. Short Magnum. 30-06 Spring.Sep 10, 2021 · NW Florida. Sep 9, 2021. #3. Look up the hammer hunter load data thread on here. Should give you a good idea where to start. If you have a standard twist barrel you will be limited to lighter bullets. I was able to hit 4000+ fps with my 257 Wby and 92HH last weekend when load testing with a couple different powders. Good luck!In no event shall Nosler, Inc. be liable for any damages resulting from the use of this data.” All cartridge measurements are SAAMI maximum and due to variations from …The Hide Armory. Reloading Depot. Sniper’s Hide is a community of Snipers of all kinds, focusing on long range shooting, accuracy, and ballistics. Founded by Frank Galli in 2000, Sniper’s Hide has been offering informational videos, podcasts, and other support to its users in one location. Forum Statistics.We use a 257 wby Mk 5 for deer and antelope with a 100 grain Barnes ttsx at 3760 fps. It is a lazer to 600 yards and makes kill shots within that distance very easy. It will group 1 1/2" at 1/4 mile. With the freebore this bullet performed very well. Barnes bullets seem to do well in freebore rifles or away from the lands in general.New research suggests that women who spend time in the workforce experience less cognitive decline as they age. In the US, women make up nearly 47% of the workforce—more than ever ...Reloading data for 257 Weatherby Magnum. Bullet. Hornady SP 87 gr. Bullet weight. 5.6 g / 87 gr. B.C. 0.322. C.O.L. 80.0 mm / 3.150.We offer Berger reloading data with over 220000 loads in our database, covering over 155 Berger bullets in over 155 calibers with all suitable powders on the market. Choose your caliber, bullet and bullet weight to find your desired Berger load data. Berger produces the highest grade bullets and ammunition commercially available today..257" 25 Spitzer BTSP Weight (grains) 120 Ballistic Coefficient 0.480 Sectional Density 0.260 COAL Tested 3.170" Speer Part No. 1410 Propellant Case Primer Weight (grains) Muzzle Velocity (feet/sec) Weight (grains) Alliant Reloder 33 Weatherby CCI 250 69.7 2953 77.4 Alliant Reloder 25 Federal CCI 250 63.0 3024 67.0 Ramshot Magnum Federal CCI ...In no event shall Nosler, Inc. be liable for any damages resulting from the use of this data.” All cartridge measurements are SAAMI maximum and due to variations from manufacturers actual measurements may vary * = Most accurate load tested 257 Wby Mag - 115 grain No sler 90% 87% B A RE L ength /Mak 91% 0.453 Partitio n® 0 .3 8 9 8 5 % 8 2 % ....257 Weatherby Magnum - Published Manufacturer Loading Data Shellholders: Hornady #5In no event shall Nosler, Inc. be liable for any damages resulting from the use of this data.” All cartridge measurements are SAAMI maximum and due to variations from manufacturers actual measurements may vary * = Most accurate load tested 7 8 % 7 5 % 9 5 % Cartridge C SHOLD : Gr. WA TE R CASE TYPE: Fed 215 257 Wby Mag - 110 grain Version 9.0 ...The .257 Magnum is one of the early Weatherby calibers, designed in 1944. It is one of the most popular Weatherby calibers, combining very high velocity, flat trajectory, and tolerable recoil. It is reputed to have been Roy Weatherby's favorite cartridge. Weatherby offers several factory loads for the .257 Mag.I have had great luck with Magnum myself, but generally RL-22, H1000, IMR7828, VV N560 and a bunch of others work well too. What I am beginning to suspect (sometimes it takes a long time to work up a good suspicion) is that the .257 Weatherby is one of those "inherently accurate&a...6.5 - 300 Weatherby Magnum - Published Manufacturer Loading Data Shellholders: Hornady #5Welcome from Central Florida and that 257 Wby should be a fire breathing dragon when you're done with it. Again, welcome to hammer time. Reactions: Mountainman. T. TMadsen New member. ... 270 Weatherby Mag load data. Rex Rugged; Apr 28, 2024; Reloading; 2. Replies 28 Views 518. May 13, 2024. unclecroc. 300+ Pound Mule Deer ….257 Weatherby Magnum (Accurate Data) reloading data with 24 loads. Using bullets from Barnes X, Hornady SP, Nosler SP, Speer SBT. Powders include Accurate ... Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet: Powder Manufacturer: Powder: Charge: Velocity (FPS) 85: Barnes X: Accurate: AAC-4350:.30-378 Weatherby (Hodgdon Data) reloading data with 86 loads. Using bullets from Sierra SPBT, Swift SP, Nosler E-Tip, Speer SPBT, Hornady SPBT, Nosler AB, Barnes XFB, Nosler Part. Powders include Hodgdon, IMR.240 Weatherby Magnum - Published Manufacturer Loading Data Shellholders: Hornady #1In no event shall Nosler, Inc. be liable for any damages resulting from the use of this data.” All cartridge measurements are SAAMI maximum and due to variations from manufacturers actual measurements may vary * = Most accurate load tested 257 Wby Mag - 115 grain No sler 90% 87% B A RE L ength /Mak 91% 0.453 Partitio n® 0 .3 8 9 8 5 % 8 2 % ...Hello everyone! This is my first post here, and I am hoping that I can get some input on the best factory load to use in a .257 Weatherby Magnum for long range shots at whitetail deer. Here in Mississippi, normal size bucks usually weigh about 150 pounds live weight, but an occasional big buck may weigh around 200 to 230 pounds.I have reloading data on 257 Arnold magnum, you can email me at [email protected] to get the data. Nick . Aug 7, 2012 #5 DrMike Ballistician. Nov 8, 2006 36,965 5,190. ... You can start with 257 WBY loads and work up. Aug 7, 2012 #8 S. SJB358 Ballistician. Dec 24, 2006 32,104 2,444.The last few weeks have been rocky, with the collapse of Silicon Valley Bank, and the crypto-heavy Silvergate and Signature banks, dominating t... The last few weeks have been rock...7mm Weatherby Magnum (Using 160 GR Nosler Bullets) Warning! Notes: rifle: barrel: Lilja; length: 24"; twist: 1-9"; case: Weatherby; primer: Rem. 9 1/2M; maximum SAAMI overall cartridge length: 3.360"; bullets: 160 grain Nosler Partition Spitzer or AccuBond; OACL: 3.360". use maximum loads with caution Be Alert: Publisher cannot be responsible for errors in published load data.I know the 257 mag like back of hand and have ran 75 grain pills to 117 in them with many different powders, so im guessing the above was a miss type or not a 257 WYB MAG. drhenley. Administrator. 264 RLB™ #7. Posts: 7,189. Location: Columbus GA USA. 110 gr .257 ELD-X for 257 Wby and 25-06. Feb 15, 2020 at 7:59am.Actually, the .257, .270 and 7mm Weatherby Magnums are made by necking down and shortening the .300 case. The three shorter cases measure 2.545 inches in length as compared with 2.820 inches for the .300 Wby. case. Powder capacity is, of course, much less than that of the .300 case, being a better balance for the .257 bore.May 8, 2014 · Colorado. May 8, 2014. #1. I have several loads worked up of 7828 with the 100 TTSX 3.17 OAL, any where from 68 - 72 grains, Barnes list 69 grains as the max, Hodgdon shows a max of 73 with a 100 grain bullet and most loads i have found on reloading sites show around 73 grains as there loads for the 100 grain TSX and other 100 grain bullets.Maximum Loads Should Be Used With Caution - Always Start With Minimum Loads. *Most Accurate Load C Compressed Load 5 Powder Minimum Maximum Charge (grains) Velocity (fps) Charge (grains) Velocity (fps) IMR 4350 45.9 2515 51.0 2743 Hunter 50.7 2670 56.3 2851 H4831sc 49.7 2544 55.3 2766 *Power Pro 4000MR 49.2 2559 54.6 2837 RL 22 47.0 2506 52.2 2766Mar 7, 2011. #2. Ah, the .257 Weatherby Mag. I love that caliber. I run a pretty hot load in mine so be careful and work up to it. I get 3725 fps out of 72.0 grs of RL22 using Barnes 100gr TSXs. Keep in mind that RL22 is temperature sensitive and running a hot load with this powder in hot weather might cause problems. L.These bullets require faster than normal powders for the cartridge and bullet weight. Load with extreme. caution. Do Not transfer any of this data to other Hammer Bullets. This is Only for Absolute Hammers. The following load data was developed and shared by our customers. Use at your own risk and work up to.257 Weatherby Magnum Load Data. 85 Grain. 100 Grain. 110 Grain. 115 Grain. 120 Grain. Explore the world of Nosler, renowned for crafting the finest bullets, ammunition, rifles, and brass. Discover our extensive lineup, including Partition, AccuBond, E-Tip, Ballistic Tip, Custom Competition, and more. Experience superior quality and performance ...257 Weatherby Magnum (Berger Bullets Data) reloading data with 42 loads. Using bullets from Berger Match FB Target, Berger Match VLD Target or Match Grade ...Re: 257 Weatherby Mag - BEST LOADS ! -73g of 7828, 75g of R25, or 71g of R22 under 100TTSXs. The above is with 215GM and Wby/Norma brass, which is around 30ish g lighter than std Remchester (hence thinner/more capacity). With Remchester 7RM or 264WM brass I usually end up about a grain off of the above. MV from my current two 257Wby rigs are ...I have a killer load with 100gr Barnes TSX, and these look interesting to play with. Reactions: OpenCountry. Dec 27, 2021 #5 Go West Old Man WKR. Classified Approved. ... Tagging in for this. I just picked up a 257 wby.....that LRX would interesting! Dec 30, 2021; Thread Starter #10 OP . OpenCountry Lil-Rokslider. Joined Sep 7, 2020 Messages 173.Of the powders you listed I would try IMR-7828. It is the ultimate 257 and 300 Wby powder. I would also give the Ram Shot Magnum a try in the 257. A 26" 257 will run 100 grain TSX'at 3700+ with the 7828. The RL-22 could show promise but I have never seen RL-15 in a 257Wby. I'm currently testing the Accubonds in my 257 with the Ram Shot Magnum ...Jan 12, 2020 ... reloading the 257 weatherby. reloader 25 h 1000 imr 7828ssc.Reduce by 10% to establish a starting charge weight. Alliant Centerfire Rifle Load Data. Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .257 Weatherby Magnum (Alliant Reloaders Guide 2008) reloading data with 8 loads. Using bullets from Speer SP, Sierra BTSP.Of course, both IMR4227 and IMR4895 are also good for faster loads. IMR4227 is a classic powder for the .22 Hornet, and works both for .22 Magnum-equivalent tree squirrel loads and fairly zippy ground squirrel loads. One of my favorite "slightly reduced" IMR4895 loads is the 35.0-grain IMR4895 starting load listed by Hodgdon for 50-grain ...Advertisement Bearings typically have to deal with two kinds of loading, radial and thrust. Depending on where the bearing is being used, it may see all radial loading, all thrust ...M .257 Wby. 100 Interlock H257100IL .357 3602 3298 3016 2752 2503 2267 2881 2416 2020 1682 1391 1141 2.4 3.1 0.0 -7.7 -21.0 ... recoil energies from the best available data for each cartridge. The figures shown are expected to be reasonably accurate of ammunition behavior under standard conditions. However, the shooter is cautioned that ....257 Weatherby Magnum (Sierra Data - Edition V) Warning! Notes: firearm used: Weatherby Mark V; barrel length: 26"; twist: 1x12"; case: Weatherby; trim-to length: 2.539"; primer: Federal 215; use maximum loads with caution; loads less than minimum charges shown are not recommended; Sierra does not recommend MatchKing bullets for hunting …Northern, Mi. Jan 19, 2021. #7. Swamplord said: Not what I was expecting but I'll take it, the 25 cal world just got a Berger with decent bc added, now I can proceed with my 25 cal wildcats that I set aside for a bit. Was hoping Berger would get 338 cal 329 gr bullet out to start off 2021 but I'll take the 25 cal 135 gr LRHT , got a couple 257 ...Hornady's 69.1 gr of RL-25 data seems low when you consider the Nosler load data max load for a 115 nosler BT is 72 gr of powder. Reply. R. Ricky McLaughlin Member. Joined Nov 23, 2018 ... I've liked h-1000 in mine rl33 has been know to gain a decent amount of velocity over h1000 in the .257 I just never went back to try it after my h1000 load ...Loading Data . Warning; Manufacturer Loading Data <NEW> List of Cartridges by Powder; Cartrige Powder Recommendations; Powder Burn Rate Chart; Primer Manufacturer Chart; ... .257 Weatherby Magnum - Published Manufacturer Loading Data Shellholders: Hornady #5. Lee #5. RCBS #4. Recipe Type: Rifle . Bullet Weight: ALL. 70 gr. 75 gr. 80 gr. 85 gr.I shoot a Model 56 Cooper in .257WBY. Mine likes RL25 and 100gr GameKings. I use this load on Deer and Antelope. I have also had good results with 115...RAMSHOT GRAND. A double-base spherical propellant, brining the latest propellant technology to the Ramshot family. With a density tuned for magnum cartridges, Ramshot Grand offers optimal load densities, which equal low extreme spreads and standard deviations. Shop Now.It killed the limb and the bear. Thousands of 257 Weatherby Magnum hunters have discovered a proper bullet properly placed spells lights out. And often in dramatic fashion, as the following ballistic data suggest. I've included a typical 30-06 deer load for comparison. 257 Weatherby Magnum, 115-gr. Nosler Ballistic Tip412 posts · Joined 2005. #1 · May 9, 2005. A while back I wrote of some difficulty in getting hand loads for my .257 Weatherby to shoot better than factory ammo, which grouped around 1.25" at 100 yds (3 shots). Am pleased to report I was out at the range today and found that with heavier bullets (115 and 117 grains) and IMR 4350 powder, the ...1. Never begin loading with the maximum powder charge shown in these reloading data tables, regardless of your experience. 2. Never exceed maximum loads because excessive chamber pressure will result. 3. Discontinue firing at the first sign of excessive pressure or upon noticing a change in the. report of the firearm.