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The 6.5 WBY RPM (Rebated Precision Magnum) is based on the lengthened version of the .284 Winchester. The large body diameter, low body taper, and 35-degree shoulder mean that case capacity is greatly increased, leading to higher velocities. CARTRIDGE SPECS Bullet Diameter: .264 (6.5mm) Common Reference: 6.5mm Caliber Max Case Length: 2.57" Production Start: 2019 BALLISTIC INFO View ...My friend has shot .257 wby a long time and is a huge fan of the 100 grain ttsx in that cartridge, ... Just got done with some load development with the 101 LRX. I used the same data from the 100 TTsx, the powder charge ended up being .3 difference and only a tad slow. ...Just picked up a new wby accuguard in 257 wby. Trying to decide on a bullet to try out and loads to start off with. Whitetails, Muleys and antelope are what I plan on hunting with it, Probly 500 yards max. Planning on trying the 110 accubond. Been wanting to give the hammers a try, rifle is a...When a Walmart gift card is purchased online, the customer selects the amount that will be loaded on the card. Cards can only be reloaded in a Walmart store by retail customers. Co...Feb 18, 2018 · Location. Texas. One of the most accurate loads I’ve ever loaded for the .257 was 115 Grain Nosler Ballistic Tip with 66.0 gr H4831. For the life of me I can’t remember where I got that load data from. Maybe an old Lee Reloading manual or something like that. Anyone have this info. I’m looking for estimated Vel in a 26 inch bbl.Home Forums Reloading Big Game Rifles Load data for 257 Wby. 110 gr GMX, H1000 powder? Forums Member List Calendar Active Threads: Previous Thread: Next Thread : Print Thread: Hop To : Re: Load data for 257 Wby. 110 gr GMX, H1000 powder? kraky111 #6605888 06/19/12. Joined: Jun 2004. Posts: 3,186. Northern Michigan. S.Hand loads using 20 grains of Hodgdon IMR "Trail Boss" powder - Weatherby nine times fired brass (full length resized) - Speer 25 cal 87 gr hollow point bullets (not crimped) - Remington 9 1/2M magnum rifle primers. Note the bulky, "fluffy", "cheerio shaped", IMR Trail Boss powder characteristic. The powder performed flawlessly - clean and ...Current loads include options like the 80-grain Barnes TTSX screaming along at nearly 3,900 fps, ... The .257 WBY has a 200- to 300-fps advantage over its contemporary rival the .25-06. At 400 yards, the .257 is ­carrying 1,400 to 1,600 foot-pounds (ft.-lbs.) of energy, depending on bullet style and weight, while maintaining velocities over ...1. Spent the winter working up loads for the .257 WM. With the 100 grain BT, Retumbo was the ticket with 1/2" groups and 3625 FPS. The 110 AB was equally as great with H4831SC and IMR 7828SSC. Both produced under 1/2"groups with velocity right at 3400 FPS. Both RL22 and RL25 are great powder, however they are TOO erratic in cold weather.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!Picked up components listed above to begin loading fo .257 Wby. Store did not have Ramshot Magnum so I took my second choice H1000 Not much data for loading gmx bullet. Hoping someone has tried the 110 gmx with H1000 Appreciate itMar 10, 2014 · 257 Weatherby: custom reamer with 100 thousandths jump to lands, 28" #5 fluted SS Lilja 3 groove barrel, moly coated 110 accubond, .015" off rifling. Original load 75.5 gr of RL-25 vel 3615 fps. RL-33: 80 gr 3432 fps. 81 gr 3525. 82 gr 3559. 83 3625 which slightly faster than old load with RL-25..257 Weatherby Magnum (Using 120 GR Nosler Bullets) reloading data with 27 loads. Using bullets from Nosler Partition Spitzer. Powders include IMR, Vihtavuori, Ramshot, Alliant, HodgdonThe german 1-12 can be problematic until you realize the issues involved. The factory ammo back then was a bullet that had a lot of bearing surface like a semi spitzer which would stabalize the factory loads. You may be forced to contact Weatherby and get more specific information. The 85g Tripple shock is nothing to sneeze at if you hand load.The loads for the .257 Weatherby loads worked out well with Hornady 100g JSPs over IMR7828 and Federal 215 primer. Load one - 73.0g - 3486 fps. Load two - 73.5g - 3555 fps. Probably have a half to full grain to go with this powder IN THIS GUN. Never had a hard extraction or flattened primer.The latest version of the Barnes Reloading Manual does not have data for the Tipped TSX in the .257 Wby mag, but does have info for the standard TSX bullet. ... For the .257 Wby Mag using the 100 grain TSX and IMR 7828SSC powder Barnes suggests a minimum load of 66 grains for 3314 fps and a maximum load of 71 grains for 3521 fps.Load Data for .338 Weatherby RPM (Rebated Precision Magnum) Bullet: 225 gr SST (HDY) Diameter: 0.338" Powder: IMR 4350 (Improved Military Rifle) Starting Powder: 63.0 gr. Max Powder: 69.8 gr . Primer: FED 215 . Case: Weatherby. Trim Length: 2.560" Cartridge Overall Length: 3.370"Doing an update on my new 257 Weatherby. I'm shooting the 101 gr Barnes LRX bullet with Reloader 22 powder. Hope you enjoy the video!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 2766Ultra-high velocity, magnum ammunition is how Roy Weatherby got started in the 1940s. As a young wildcatter, he revolutionized the industry with his fast, hard-hitting loads that were dead-on accurate. Today, those same performance qualities are every bit a part of Weatherby cartridges. Weatherby's move to Wyoming is an exciting step towards the continual opportunitySep 29, 2015. #8. MT, the 115 Bergers with H1000 make my .257 Wby my most accurate rifle. Seating took several settings to find most accuracy, but it's ready for my muley hunt in November. Like Mud said, hit the boiler room not the shoulder. Good luck.

One Thousand One Swift Avenue PO Box 27 Quinter, KS 67752 P: 785-754-3959 F: 785-754-2359In 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 % ...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.Hornady Manufacturing Company develops and publishes reloading data for the Handbook of Cartridge Reloading. Occasionally, we will temporarily publish load data on this page when a bullet becomes available and is not yet listed in the latest edition of the handbook. 6.5mm .264" 100 gr. ELD-VT™ [PDF] 22 ARC (Bolt Gun) [PDF] 22 ARC (Gas Gun) [PDF]

Barnes offers a wide range of products including centerfire rifle, handgun and shotgun ammunition, as well as reloading supplies for both factory and custom loads. The company's signature product lines include their famous X-Bullets, Varmint Grenade bullets, Triple Shocks X-Bullets, Vor-TX Rifle Ammunition and more.Bullet : .257, 115, Barnes 'TSX' 25743. Cartridge O.A.L. L6: 3.170 inch or 80.52 mm. Barrel Length : 26.0 inch or 660.4 mm. Predicted Data for Indicated Charges of the Following Powders. Matching Maximum Pressure: 63000 psi, or 434 MPa. or a maximum loading ratio or filling of 105 %. These calculations refer to your specified settings in ...In this video I do more load development with the 101 gr Barnes LRX. I'm trying to get sub MOA with these bullets.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. 257 Wby Magnum 110 gr ELD-X ® Precision Hunter ®. Accuracy an. Possible cause: 243 Savage Storm 22" bbl 1-9.25 twist 2.710" coal Cci 250 primers 80gr ham.