This question is about the NetSpend® Visa® Prepaid Card - Pay-As-You-Go @lisacahill • 06/27/19 This answer was first published on 06/27/19. For the most current information about a...Load Data for .257 Roberts. Bullet: 120 gr HPBT (Sierra) Diameter: 0.257" Powder: IMR 4350 (Improved Military Rifle) Starting Powder: . Max Powder: 41.5 gr. Primer: REM 9½. …Refer to the current SPEER® Reloading Manual for handloading instructions. Be thoroughly familiar with those instructions before using these loads. As Vista Outdoor Operations LLC has no control over individual handloading practices or the condition of firearms in which ... 257 Roberts +P 3290 3386 3381 3367 3295 3226 3187 3184 3170 3163 3153 ...According to Philip B. Sharpe’s classic book Complete Guide to Handloading (Third Edition, Second Revision), listed the specs for the .257 Roberts were an 87-grain bullet at 3100 fps, a 100-grain bullet at 2800 fps and a 117-grain bullet at 2550 fps. The round nosed 117-grain bullet was a good choice for deer and similar-sized game, but ….257 Roberts +P (Accurate Loading Guide #2) Warning! Notes: This data is only for use in modern firearms, approved by a gunsmith or manufacturer, for use with higher pressure +P ammo. The SAAMI Maximum Average Pressure for the .257 Roberts +P is 58,000 PSI. Factory +P ammo produced 51,000 PSI in our test barrel. These loads do not exceed that ...Never will understand folks fishing for reloading data on the Internet. There are so many documented loads out there, if you search even a little bit. ... Accuracy has come at the top of the loading charts for my 30.06 with 168g bullets and .257 Roberts with 75g bullets with 760. The sensitivity issue concerns me now that I read about it. I'll ...257 Roberts +P with 100 gr HP. speer-ammo.com Alliant Reloder 23 Federal Federal 210 43.9 2767 48.8 C3064 Hodgdon H380 Winchester CCI 250 38.0 2566 42.0 2842 Hodgdon H414 Winchester CCI 250 40.0 2657 44.0 2878 Hodgdon H4350 Winchester CCI 200 43.0 2795 47.0 C3055222 Remington Magnum. 22-250 Remington. 223 Remington. 243 Winchester. 25-06 Remington. 257 Roberts +P. 26 Nosler. 260 Remington. 264 Winchester Magnum.Jan 1, 2023 ... It's time for me to fix a common flaw in my shooting technique and learn how to drive this rifle! GunBlue490, Sight-In Tips: ....257 Roberts Reloading Data (Using Hornady Bullets) reloading data with …Printed from Shooter's Reference on 05/03/2024: https://www.shootersreference.com/reloadingdata/257-roberts/Warning! Notes: .257 Roberts, Ruger M-77 long action 24-inch barrel; Remington cases, 186 grains; CCI No. 200 primers; Oehler M-31 Chronotach, Oehler M-50 photoelectric screens; velocity at 15 feet converted to MV; temperature 70 degrees; this rifle had a rather loose chamber and would handle more powder than most rifles with every bullet ...Tucson, Az. Tucson, Az. I went to Alliant's site and they don't mention RL-17 with the 257 Roberts. I have loaded it in a 6mm Rem, 284 and 7 Rem Mag. Charge weights are similar to using 4350. I'd try to call Alliant and ask them. For what it worth Alliant lists a 100 gr bullet in the 6mm Rem with a max load of 44 gr of RL-17.Mar 10, 2011 ... Looking for loads for a 257 Roberts, the rifle is used for elk, deer, and antelope. Thinking a 110gr Nosler ACCU-bond or 100gr Partition will be ...3071. Remarks: COAL: 2.942 inches; average of three shots (100-yard group): .98 inches. .257 Roberts Ackley Improved (Handloader issue 300) reloading data with 3 loads. Using bullets from Hornady V-Max, Swift Scirocco II, Nosler Partition. Powders include IMR, Hodgdon, Alliant.IMR-7828. Subscribe. 2,608. Remarks: .257 Roberts Carbine reloading data with 33 loads. Using bullets from Sierra jacketed hollowpoint, Hornady Spire Point, Sierra hollowpoint boat-tail, Nosler Ballistic Tip, Nosler Partition, Sierra spitzer boat-tail, Speer spitzer boat-tail. Powders include Hodgdon, IMR, Alliant, Accurate.Load Data for .257 Roberts . Bullet: 90 gr GMX (HDY) Diameter: 0.257" Powder: IMR 4064 (Improved Military Rifle) Starting Powder: 35.0 gr. Max Powder: 38.5 gr .257 Roberts +P; 26 Nosler; 260 Remington; 264 Winchester Magnum; 27 Nosler ; 270 Weatherby Magnum; ... Safety Data Sheets; Load Data. Nosler Load Data; Reloading Glossary; Dealer Locator. Sign In / Register. Search. Search. Search. Advanced Search Sign …Re: Your most accurate .257 Roberts load with 100 gr. Partitions? I haven't tried the Partitions in my M70 Featherweight, but they shot exceptionally well in the Browning A-bolt I used to have. My current load is the 90 gr. Barnes X bullet/45.0 gr. IMR 4350/CCI 200/Remington brass. It shoots .5 MOA all day.The .257 Roberts started life as a wildcat, devised by gunwriter and tinkerer Ned Roberts in the 1920s who tried his hand at necking down a case to shoot a smaller bullet. The idea, as always, was to decrease recoil and gain ballistic advantage through sheer velocity. The parent case is 7x57mm Mauser.Oct 15, 2022 ... ... data, 2 or 3 online ballistic calculators for ballistic data. Do not modify any cartridge or firearm beyond what the manufacturer recommends ....257 Roberts Ackley Improved (Using Nosler Bullets) Warning! Notes: Case: Winchester; primer: Fed 210; barrel length/make: 24" Wiseman; twist: 1-10"; bullets: 85 GR Ballistic Tip Spitzer or CT Ballistic Silvertip Spitzer; 100 GR Nosler Ballistic Tip Spitzer, E-Tip Spitzer (due to internal construction differences, always begin with starting loads when using E-Tip products) or Partition Spitzer ...In this section you'll find anything related to reloading data, be it our Norma Reloading Manual, burning rate chart or how to store your powder. But first of all, we want to start with a warning! ... 257 ROBERTS. 25-06 REMINGTON. 257 WEATHERBY MAGNUM. 6,5 JAPANESE ARISAKA. 6,5 CARCANO. 6,5x54 M-S. 260 REMINGTON. 6,5x55 …The current SAAMI spec for the .257 Roberts Maximum Average Pressure (MAP) is 54,000 psi. Winchester introduced a +P version with a MAP of 58,000 psi in the mid-1980s. That’s still less than the typical 60,000 to 65,000 psi of comparable modern rifle cartridges. The .257 Roberts was pretty popular for a few years before and after World War II ...The slower powders work better with heavy bullets for me in the 257 Roberts.. 48gr of RL26 with WLRM primers and win cases gets about 3120fps for 5 shots using 115gr Nosler partitions. RL23 with 48.2gr with 110gr Accubonds CCI250 mag primers win cases 3157 fps. All in a model 70 Winchester.Lube Dies 2. Model: 87552. Availability: In Stock. $46.99. View more. Shopping for the .257 Roberts Reloading Essentials - Learn more about the latest Shop by Cartridge and other hunting or shooting gear at RCBS.The .257 Roberts A.I. holds around 56.6 to 58.5 grains of water beneath a seated bullet, to the .257 Roberts 51.4 to 53.6 grains, all other factors remaining equal. Hornady’s 90-grain GMX paired best with. 43.5 grains of IMR-4064 at a velocity. of 3,302 fps. That three-shot, 100-yard group. measured .58-inch.Sep 25, 2022 ... Hopeful Ballistics•8.5K views ... Checking Accuracy on 7x57 and 257 Roberts ... HOW TO RELOAD: RCBS Reloading Series - Part 1 #6.5 Creedmoor #6.5 ...*To fire-form brass, use the faster-burning powders and loads from standard .257 Roberts data. *To properly chamber a rifle for .257 Ackley Improved cartridges, a gunsmith must set the original barrel back about 0.004”. The chamber distance from the bolt face to the junction of shoulder and neck is shorter in Ackley Improved rifles than in ....257 Roberts (Barnes Reloading Manual #4) reloading data with 40 loads. Using bullets from Barnes TTSX BT, Barnes Banded Solid Spitzer, Barnes TSX BT, Barnes TSX FB. Powders include IMR, Ramshot, Hodgdon, Vihtavuori, Accurate, Alliant ... .257 Roberts (Barnes Reloading Manual #4) Warning! Notes: case: R-P (except where otherwise …Jun 27, 2019 · The current SAAMI spec for the .257 Roberts Maximum Average Pressure (MAP) is 54,000 psi. Winchester introduced a +P version with a MAP of 58,000 psi in the mid-1980s. That’s still less than the typical 60,000 to 65,000 psi of comparable modern rifle cartridges. The .257 Roberts was pretty popular for a few years before and after World War II ... 257 Roberts +P with 120 gr Spitzer BTSP. speer-ammo.com Hodgdon H414 Winchester CCI 250 39.0 2507 43.0 2767 IMR 4064 Winchester CCI 200 34.0 2423 38.0 2705 IMR 4320 Winchester CCI 200 32.0 2316 36.0 2545 IMR 4350 Winchester CCI 200 39.0 2512 43.0 2758 IMR 4831 Winchester CCI 200 41.0 2552 45.0 2793257 Roberts +P with 120 gr Spitzer BTSP. speer-ammo.com Hodgdon H414 Winchester CCI 250 39.0 2507 43.0 2767 IMR 4064 Winchester CCI 200 34.0 2423 38.0 2705 IMR 4320 Winchester CCI 200 32.0 2316 36.0 2545 IMR 4350 Winchester CCI 200 39.0 2512 43.0 2758 IMR 4831 Winchester CCI 200 41.0 2552 45.0 2793Hi, new here, I recently acquired a rifle from my deceased uncle, a sporterized Japanese Arisaka, rechambered in 6.5x257roberts. From comparing the brass that came with the rifle, 257 and 6.5x257 are pretty much the same except the mouth is opened up to except 6.5 cal. Would like to reload some newer brass, but was thinking all I need to do …Notes: Source: Rifle Issue #274 - May, 2014. Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .257 Ackley Improved Load Data reloading data with 19 loads. Using bullets from Hornady V-Max, Barnes Tipped Triple-Shock, Sierra Varminter, Sierra Pro-Hunter, Swift Scirocco, Nosler AccuBond, Hornady SST, Swift A-Frame.Utah. QuickLOAD agrees with the others that 45.5g is WAY over pressure for the standard 257 Roberts. With a 24" barrel and a COAL of 2.775" the estimated pressure is 67,220 psi with 3,081 fps estimated muzzle velocity. QuickLOAD predicts that 41.5g to be max with that combo (@ 2.775" COAL & 24" barrel) for 2,822 fps..257 Roberts (Hodgdon CFE 223 Data) reloading data with 6 loads. Using bullets from Hornady SP, Hornady HP, Barnes TTSX BT. ... .257 Roberts (Hodgdon CFE 223 Data) Warning! Notes: case: Remington; barrel length: 24"; twist: 1:10"; trim length: 2.223"; primer: Remington 9 1/2; bullet diam.: .257"; NEVER EXCEED MAXIMUM LOADS Be Alert: …Wt. .257 Roberts (Using Nosler Bullets) reloading data with 150 loads. Using bullets from Nosler BT, or CT Ballistic Silvertip, Nosler BT, Partition Spitzer or E-Tip, Nosler Accubond, Nosler Solid Base Ballistic Tip (blue), Nosler, Nosler Partition Spitzer. Powders include Alliant, Accurate, IMR, Hodgdon, Vihtavuori, Ramshot, Winchester.25 Caliber Neck Sizer Die - 250 Savage, 257 Roberts, 25-06 Remington, 257 Weatherby Magnum. 005-046042 | Hornady. $34.15. In Stock. 257 Roberts Full Length Series III 2 Die Set With Zip Spindle. 005-546274 | Hornady. $63.81. In Stock. 257 Roberts Full Length Pacesetter 3 Die Set With Shellholder.Reloading . John Barnsness , .257 Bore article. ... 250/3000 .257 roberts 25,06 and the .257 weatherby magnum. I have exchanged PMs with John , on the Roberts and the wetherby mag, on a few ocaisions. The data that intrests me in particular, is in The Roberts. (duh , I do call myself TJ Roberts).Rifles, Reloading, Optics, Equipment. Reloading ..257 133 Berger Elite Hunter. ... even better a 257-338 rum will make these babies sing . Reply. Reactions: West Calamus and Jud96. Jud96 Well-Known Member. Joined Jun 30, 2013 Messages 3,619 Location Michigan. Feb 7, 2021 #4 Hecouldgoalltheway said:6.5x257 Roberts: Warning! Notes: rifle: Japanese type 38 (rechambered); barrel: 24"; twist: 1-8 3/8; cases: R-P; primer: CCI-200 (except where otherwise specified in remarks); data for 87 grain Spitzer bullet may be used with the 87 grain Hollow Point; this data may be used to load 6.5x57mm Mauser; maximum loads listed should be used with caution (Speer …257-Roberts+P-115gr-version-9-0. This data was developed to the 257 Roberts +P pressure level of 58,000 psi, and should only be used in modern rearms and +P cases …56 posts · Joined 2003. #4 · Jul 24, 2008. My .257 AI built on a pre-64 Win M70 action and Douglas Premium barrel likes the following load: Winchester brass. CCI Large Rifle Primers. 100 gr. Nosler Partitions. 50 grs. IMR 4350. Load chronographs at 3200 fps and shoots 5/8" three shot groups at 100 yards.Notes: Loads fired from a 24-inch barreled Montana Rifle Company Woodland .257 Ackley Improved with a Leupold 3.5-10x, set on 10x. All loads shot with Winchester Large Rifle primers. All cases were fireformed from .257 Roberts brass, and all groups were fired at 100 yards, except where noted. (Handloader Issue #266 - June, 2010)Load data with 94 loads for .257 | 100gr | Sierra SPT Pro-Hunter bullet in caliber .257 Roberts257-Roberts+P-120gr-version-9-0. This data was developed to the 257 Roberts +P pressure level of 58,000 psi, and should only be used in modern rearms and +P cases ….257 Roberts (Reduced Loads) reloading data with 4 loads. Using bullets from Hornady Flatnose, Sierra ProHunter, Nosler Partition. Powders include IMR, HodgdonStan's .257 Roberts is a Winchester Model 70 Featherweight. The .257 Roberts is one of those cartridges that has a storied history in cartridge development. Noted gun and cartridge experimenter – Dr. Franklin Mann – was indeed a very important part of the .25-caliber concept. Ned Roberts of New Hampshire was the other part, and in fact was ....257 Roberts Loads reloading data with 7 loads. Using bullets from Sierra hollowpoint, Nosler Ballistic Tip, Hornady Spire Point, Nosler Partition, Barnes TSX. ... .257 Roberts Loads: Warning! Notes: Source: Handloader Issue #247 - June, 2007: Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet: Powder ...Home / Article/LoadDevelopment. Load the .257 Roberts. Author: Stan Trzoniec / Wolfe Publishing Co. Date: May 13 2019. Examples of .25-caliber cartridges include (left to … The .257 Roberts has (finally) been updated to piezoelectric pressure measurements, with standard pressure loads listed at 54,000 psi while +P loads are listed at 58,000 psi. The maximum loads in the accompanying data are almost all +P pressures. However, for handloaders wanting standard pressure data, starting and maximum loads should be ... .257 Roberts (Hodgdon Data) reloading data with 122 loads. Using bullets from Hornady SP, Hornady HP, Barnes TTSX BT, Hornady GMX, Sierra HPBT, Speer SPBT, …Sep 14, 2010 ... Target velocities for 100 gr bullets is in the 3150 fps range. 110, 115 gr bullets, right at or just below 3100 fps. Easily obtainable with ...Well, I'm about three weeks into reloading for the .257 Roberts +P. So far I have three good loads worked up and have loaded but not test-fired another batch. The results so far: Common components. Win brass, CCI 250 primer. 75g Hornady VMAX. COL 2.8025". 42.0g Varget. 3187fps, 7.0fps STD, 16fps E.S.Rifle Data. Rifle Data. Here you will find load data for some of the most recent cartridges on the market, with more being added each week. We are currently populating the cartridge drop-down menu with updated cartridge renderings, new propellants and bullets, and links to complimentary product pages. Cartridge.Warning! Notes: case: Remington; bbl: 24"; pr: Remington 9 1/2; NEVER exceed loads listed. Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .257 Roberts (IMR Data) reloading data with 11 loads. Using bullets from Sierra SP, Sierra Hollow Point Boat Tail. Powders include IMR.257 Roberts Brass: We Offer Both New and Once Fired Brass in 257 Roberts Once Fired Brass : The once fired brass has been magnetically screened, machine sorted and meticulously hand inspected. Brass is comprised of mixed headstamps, both nickel and brass casings. They are packaged in vacuum sealed in bags. The vacuum sealed bags … Width: 0.473". Average FPS: 2790. Average Energy: 2039. Average Gr: 118. Recoil: 1.47. Power Rank: 3.29 of 20. The .257 Roberts was designed in the 1920s when wildcatter Ned Roberts started to do experiments on the .257 caliber cartridges. After some work he decided to go with a 7x57 Mauser as the parent case and Remington Arms picked up the ... 2971. Remarks: max load. .257 Roberts (Berger Bullets Data) reloading data with 38 loads. Using bullets from Berger Match FB Target, Berger Match VLD Target or Match Grade VLD Hunting. Powders include IMR, Hodgdon, Alliant, Accurate, Ramshot, Vihtavuori, Winchester, Norma.Overview. Nosler 257 Roberts +P Rifle Reloading Brass - 50 Count. Nosler Premium Brass is designed for those who want to take finding the perfect load into their own hands. Fully prepped and ready to load, Nosler's gone ahead and done the meticulous case prep work for you. Each piece is chamfered, deburred, checked for proper alignment, sized ... Gunpowder Charge Weight Velocity m/s Velocity fps; Norma MRP: Max 49.9 Min 47.0: 923 864: 3028 2835 The market for personal data is quietly infiltrating and affecting every aspect of our lives. When Judge Robert Bork was nominated for the Supreme Court in 1987, a reporter for the...Remarks: max load; COL: 2.775"; 45,000 cup. .257 Roberts reloading data with 91 loads. Using bullets from Hornady HP, Barnes TTSX BT, Hornady GMX, Sierra HPBT, …Wt. .257 Roberts (Using Nosler Bullets) reloading data with 150 loads. Using bullets from Nosler BT, or CT Ballistic Silvertip, Nosler BT, Partition Spitzer or E-Tip, Nosler Accubond, Nosler Solid Base Ballistic Tip (blue), Nosler, Nosler Partition Spitzer. Powders include Alliant, Accurate, IMR, Hodgdon, Vihtavuori, Ramshot, Winchester.Never will understand folks fishing for reloading data on the Internet. There are so many documented loads out there, if you search even a little bit. ... Accuracy has come at the top of the loading charts for my 30.06 with 168g bullets and .257 Roberts with 75g bullets with 760. The sensitivity issue concerns me now that I read about it. I'll ....257 ROBERTS ACKLEY IMPROVED - Published Manufacturer Loading Data. Recipe Type: Rifle. Bullet Weight: ALL. 75 gr. 80 gr. 85 gr. 90 gr. 100 gr. 115 gr. 120 gr. Powder: …NORMA wants to contribute to development and therefor we share approved reloading data for handloading with every caliber. Learn more about hand loading here! Norma Academy; Products; Reloading; Governmental; ... 257 ROBERTS. 25-06 REMINGTON. 257 WEATHERBY MAGNUM. 6,5 JAPANESE ARISAKA. 6,5 CARCANO. 6,5x54 M-S. …6.5x257 Roberts: Warning! Notes: rifle: Japanese type 38 (rechambered); barrel: 24"; twist: 1-8 3/8; cases: R-P; primer: CCI-200 (except where otherwise specified in remarks); data for 87 grain Spitzer bullet may be used with the 87 grain Hollow Point; this data may be used to load 6.5x57mm Mauser; maximum loads listed should be used with caution (Speer …Dec 9, 2014 ... 2- Used H4895, which Hodgdon discusses on their site in the reloading data section. Essentially, you can take the max book charge on a given ...Sep 24, 2022 ... These recoil figures can be adjusted with heavier or lighter bullets, of course, but when using the most common factory loads, the .257 Roberts ... The .257 Roberts has a maximum average pressure of 54,000 psi and can be loaded with bullet weights ranging from 75 to 120 grains. It is commonly used for hunting deer, antelope, and other similar-sized game, as well as varmints. The popularity of the .257 Roberts has declined in recent years, with many hunters opting for newer cartridges that ... Home Forums Reloading Big Game Rifles 6.5 x 257 Roberts: Forums Member List Calendar Active Threads: Previous Thread: Next Thread : ... "6.5 x .257 Roberts, This is a wildcat cartridge,designed to simplify the ammunition problem with the 6.5 mm Arisaka. ... Memory: 0.9200 MB (Peak: 1.0357 MB) Data Comp: Zlib Server Time: 2024-05-15 …Load Data for .257 Roberts . Bullet: 80 gr TTSX BT (Barnes) Diameter: 0.257" Powder: IMR 4451 (Improved Military Rifle) Starting Powder: 43.2 gr. Max Powder: 48.6 gr . .257 Roberts (Hodgdon Data) reloading data with 122 loads. Using bullets from Hornady SP, Hornady HP, Barnes TTSX BT, Hornady GMX, Sierra HPBT, Speer SPBT, Nosler Part. .257 Roberts reloading data with 8 loads. Using bullets from Sierra jacketed hollowpoint, Hornady jacketed hollowpoint, Speer jacketed hollowpoint, Nosler Solid Base, Nosler Partition, Sierra spitzer boat-tail, Hornady hollowpoint. Powders include IMR, Norma, Hodgdon, WinchesterLoad Data for .257 ROBERTS ACKLEY IMPROVED . Bullet: 75 gr HP (Sierra) Diameter: 0.257" Powder: 4350 (Accurate) Starting Powder: 49.5 gr. Max Powder: 55.0 gr .Warning! Notes: velocities taken at five feet (Handloader Issue #11) Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .257 Roberts Cast Bullet Data reloading data with 13 loads. Using bullets from Lyman No. 257464. Powders include Norma, IMR, Hodgdon.3071. Remarks: COAL: 2.942 inches; average of three shots (100-yard group): .98 inches. .257 Roberts Ackley Improved (Handloader issue 300) reloading data with 3 loads. Using bullets from Hornady V-Max, Swift Scirocco II, Nosler Partition. Powders include IMR, Hodgdon, Alliant.Well, I'm about three weeks into reloading for the .257 Roberts +P. So far I have three good loads worked up and have loaded but not test-fired another batch. The results so far: Common components. Win brass, CCI 250 primer. 75g Hornady VMAX. COL 2.8025". 42.0g Varget. 3187fps, 7.0fps STD, 16fps E.S. 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 8 2 % 0 .3 2 9 8 4 % Cartridge C SHO D : Gr. W T CASE TYPE: Fed 210 257 Ack Imp - 85 grain Version 9.0 ... Remarks: COAL: 2.750 inches; maximum load. .257 Roberts (using Sierra bullets) reloading data with 391 loads. Using bullets from Sierra HP, Sierra SPT, Sierra SPT , Sierra HPBT, Sierra SPT, SBT or HPBT MatchKing, Sierra SPT or SBT, Sierra SPT or SBT , Sierra SPT or SBT . Powders include IMR, Hodgdon, Accurate, Vihtavuori, Ramshot, Alliant.
Depriming and priming must be done by hand. If cases were formed from cases having boxer-type primers, use the appropriate Shell Holder for that caliber. (4) not available. (5) Auto 4X4 Shell Plate not available. (6) Auto 4X4 and Five-Station Shell Plates not available. Ammo Box size code: SR=Small Rifle, MR=Medium Rifle, LR=Large Rifle, MP .... Bonanza mariette hartley
Notes from the Lab: .257 Roberts (using Sierra bullets) N.H. “Ned” Roberts developed the .257 Roberts during the 1920s by necking the 7mm Mauser (aka 7x57) case to accept .257-inch bullets and by changing the shoulder angle from 20 ... data is loaded to +P pressures and should only be used in modern actions intended for the increased pressures.257 Roberts +P with 120 gr Spitzer BTSP. speer-ammo.com Hodgdon H414 Winchester CCI 250 39.0 2507 43.0 2767 IMR 4064 Winchester CCI 200 34.0 2423 38.0 2705 IMR 4320 Winchester CCI 200 32.0 2316 36.0 2545 IMR 4350 Winchester CCI 200 39.0 2512 43.0 2758 IMR 4831 Winchester CCI 200 41.0 2552 45.0 2793*To fire-form brass, use the faster-burning powders and loads from standard .257 Roberts data. *To properly chamber a rifle for .257 Ackley Improved cartridges, a gunsmith must set the original barrel back about 0.004”. The chamber distance from the bolt face to the junction of shoulder and neck is shorter in Ackley Improved rifles than in ... Width: 0.473". Average FPS: 2790. Average Energy: 2039. Average Gr: 118. Recoil: 1.47. Power Rank: 3.29 of 20. The .257 Roberts was designed in the 1920s when wildcatter Ned Roberts started to do experiments on the .257 caliber cartridges. After some work he decided to go with a 7x57 Mauser as the parent case and Remington Arms picked up the ... Reloading . 257 Roberts +P Quickload Request ... .257 Roberts +P+ (not SAAMI) Bullet : .257, 115, Nosler BalTip 25115 Useable Case Capaci: 47.503 grain H2O = 3.084 cm³ Cartridge O.A.L. L6: 2.775 inch = 70.49 mm Barrel Length : 20.0 inch = 508.0 mm Powder : Alliant Reloder-22 Predicted data by increasing and decreasing the given …Jun 21, 2020 ... Best loads for 257 roberts with 117gr hornady sst h380 powder nosler +p brass and cci LR 200 primers. 10 years ago I made some loads that shot ....257 Roberts Improved Data reloading data with 40 loads. Using bullets from Hornady, Sierra HP, Rem. Power Lokt, Sierra, Hornady Spire Point, Hornady Round Nose, Barnes. Powders include Norma, Hodgdon, IMR, Alliant, Winchester ... .257 Roberts Improved Data: Warning! Notes: 28 degree; 22-inch sporter barrel; Oehler Model 10 chronograph ….257 Roberts +P Alliant has no data for the .257 Roberts, but out of my Cooper Model 22, 48.0 grains of IMR-4350 launches a 90-grain Sierra boat-tail hollow-point (BTHP) at just about 3,200 fps. Reducing that charge weight to 44.0 grains with Reloder 17, the resulting velocity was 3,266 fps..257 Roberts Loads reloading data with 7 loads. Using bullets from Sierra hollowpoint, Nosler Ballistic Tip, Hornady Spire Point, Nosler Partition, Barnes TSX. ... .257 Roberts Loads: Warning! Notes: Source: Handloader Issue #247 - June, 2007: Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet: Powder ...The .257 Roberts. The fine .257 Roberts is based on a necked-down 7mm Mauser case, and was legitimized by Remington in 1934. From then until the introduction of the hot .243 Winchester and .244/6mm Remington in 1955, the .257 was the top selling combination varmint/deer cartridge. The .257 is offered in a number of factory loads with 117-120 ...Characteristics of .257 | 110gr | Hornady ELD-X bullet and comprehensive load data for this projectile. .257 | 110gr | Hornady ELD-X | Reloading Data To be able to use the full range of Shopware 6, we recommend activating Javascript in your browser..
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