257 roberts reloading data

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 ...

Load Data for .257 Roberts. Bullet: 115 gr PART (NOS) Diameter: 0.257" Powder: StaBALL 6.5 (Winchester) Starting Powder: 38.5 gr. Max Powder: 43.0 gr. Primer: REM 9½. Case: …By 2050, 66% of people will live in urban areas. Smarter data-driven urban planning will help make that possible. In the middle of the 20th century, a war waged for the soul of New...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. .257 Roberts (Cast Bullet Loads) reloading data with 9 loads. Using bullets from Lyman 257463, Lyman 257464, Lyman 257235. Powders include Alliant, IMR I am planning on trying the 110 gr AB in my 257 Roberts this spring. I am shooting a M700 Classic and have had excellent results with IMR 4350. I will start my load development with this powder. With the 100 gr BT or PT, I have been using 45.0 grs of IMR 4350. The 115 gr BT and PT use 43.0 grs of the same powder.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.Phone Orders & Customer Service. 1-800-272-3000 | Mon - Fri | 8am to 5pm CST. Pickup Room Hours. Mon - Fri | 8am to 5:30pm CST. Click here for holiday closures. Midsouth Shooters Supply's selection of reloading supplies includes 257 Roberts brass. Build your next load using our 257 Roberts rifle reloading brass.

.257 Roberts +P (Speer Reloading Manual #14) reloading data with 116 loads. Using bullets from Speer FNSP, Speer Spitz SP or TNT HP, Speer Spitz SP, HP or Spitz …It is considered to be about the maximum capacity for the .25 bore and still produce satisfactory performance and good barrel life. The Improved .257 can be readily recommended. (Handbook for Shooters & Reloaders/Vol. 1 - P.O. Ackley, 1962) NOTE: USE THIS DATA WITH EXTREME CAUTION. Be Alert: Publisher cannot be ….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 …Barrel twenty-four inches long with ten-inch twist. (Handloader Issue 89) Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .257 Roberts (Ruger Model 77) reloading data with 21 loads. Using bullets from Sierra, ….257 Roberts +P (Speer Reloading Manual #14) reloading data with 116 loads. Using bullets from Speer FNSP, Speer Spitz SP or TNT HP, Speer Spitz SP, HP or Spitz …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, ….257 Diameter Bullets 75 gr. HP 87 gr. SPT 90 gr. HPBT 100 gr. SPT 100 gr. SBT 117 gr. SBT 117 gr. SPT 120 gr. HPBT.264 Diameter Bullets 85 gr. HP 100 gr. HP 120 gr. SPT257 Roberts Load Data Using Hornady reloading data with the 257 Roberts bullets creates a great round that is popular with hunters who like its low recoil rates. The .257 Roberts dates way back to around the 1920's but many still use it to this day. Be Alert: Publisher cannot be responsible for errors in published load data.

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 ...2,744. Remarks: 0.93 inch. .257 Roberts, 22-Inch Barrel reloading data with 14 loads. Using bullets from Hornady hollowpoint, Sierra hollowpoint, Hornady pointed softnose, Sierra pointed softnose, Nosler Partition, Nosler Ballistic Tip, Hornady spitzer boat-tail, Sierra spitzer boat-tail, Remington roundnose, Hornady roundnose, Speer spitzer ...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 Rob +P - 120 grain Version 9.0 24" Lilja BARREL Twist 1-10" GRS. POWDER CHG. 0.391 69% 64% 69% 75% 6% ** = Compressed load “ Because Nosler, Inc. has no control over the actual components selected, the manner in which they are assembled or the condition of the firearm used, no responsibility, either expressed or implied is assumed for the ...

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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.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.Did some testing today on .257 roberts, identical loads the only difference being the cases. It was plain wrap RPs vs. +P. The plus Ps always ...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 …

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 …222 Remington Magnum. 22-250 Remington. 223 Remington. 243 Winchester. 25-06 Remington. 257 Roberts +P. 26 Nosler. 260 Remington. 264 Winchester Magnum..257" 25 Spitzer BTSP Weight (grains) 120 Ballistic Coefficient 0.480 Sectional Density 0.260 COAL Tested 2.770" Speer Part No. 1410 Propellant Case Primer Weight (grains) Muzzle Velocity (feet/sec) Weight (grains) Alliant Power Pro 4000-MR Federal Federal 210 40.2 2589 44.7 Alliant Reloder 23 Federal Federal 210 41.2 2608 45.8 C25 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.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 ... 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.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 Handloads +P Pressure reloading data with 31 loads. Using bullets from Hornady Spire Point, Barnes TSX FB, Hornady SST, Sierra softpoint, Speer softpoint. Powders include IMR, Winchester, Hodgdon, Vihtavuori, Alliant, Ramshot, Norma, AccurateRemarks: mid range load; COL: 2.705"; 27,800 psi. .257 Roberts Youth / Reduced Loads (Accurate Data) reloading data with 4 loads. Using bullets from Lead GC, RCBS Lead GC. Powders include Accurate.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...All loads in Winchester Super Speed cases, overall length was 3.015 inches. (Rifle Issue 108 - November, 1986) Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .257 Roberts Ackley Improved reloading data with 13 loads. Using bullets from Sierra, Sierra B.T., Speer. Powders include IMR, Hodgdon, Norma.

Loading Data . Warning; ... Reloading Costs Calculator; Case Crimp Calculator; Energy, Momentum, Power Factor, and Taylor Knock-out Calculators ... .257 Roberts ...

.257" 25 Spitzer SP Hot-Cor® 25 HP 25 Spitzer BTSP Weight (grains) 100 ... Refer to the current SPEER® Reloading Manual for handloading instructions. Be ... 257 Roberts +P 3064 3113 3110 3094 3091 3055 3053 3050 3030 3023 2944 2871 2842 2807 MAXIMUM CHARGE Muzzle Velocity (feet/sec) 2878257 Roberts +P 117 gr SST® Superformance®. Increase your rifle's performance up to 200 fps without extra chamber pressure, recoil, muzzle blast, temperature sensitivity, fouling, or loss of accuracy. Superformance ® uses progressive propellants that take your favorite V-MAX, ® NTX, ® SST, ® CX,™ and InterLock, ® bullets to levels of ... 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 We place limited powder inventory for sale on a regular basis on our website. When we are sold out, we are sold out. We do not take backorders and our Tech Services team cannot take orders via email or phone. The max order quantity of any powder SKU is 5 and we will only accept one order, per customer, per calendar month with a maximum weight ...By 2050, 66% of people will live in urban areas. Smarter data-driven urban planning will help make that possible. In the middle of the 20th century, a war waged for the soul of New...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.For those wondering why I would suggest using 6.5mm Swedish Mauser loading data to load a 6.5mm x 57 (or more precisely, a necked up .257 ...

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Load Data for .257 Roberts . Bullet: 80 gr TTSX BT (Barnes) Diameter: 0.257" Powder: IMR 3031 (Improved Military Rifle) Starting Powder: 36.0 gr. Max Powder: 40.3 gr ... 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 ... 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. Printed from Shooter's Reference on 05/03/2024: https://www.shootersreference.com/reloadingdata/257-roberts/ 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 - Published Manufacturer Loading Data Shellholders: Hornady #1Warning! 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 Load Data Using Hornady reloading data with the 257 Roberts bullets creates a great round that is popular with hunters who like its low recoil rates. The .257 Roberts dates way back to around the 1920's but many still use it to this day. Be Alert: Publisher cannot be responsible for errors in published load data.Even if you have a checking account, debit card or credit card for your business, you may not feel comfortable shopping with it online. NetSpend offers a prepaid debit card that yo....257 Roberts Handloads Standard Pressure reloading data with 40 loads. Using bullets from Hornady Spire Point, Berger HP, Barnes TSX FB, Hornady SST, Sierra softpoint, Speer softpoint. Powders include IMR, Winchester, Hodgdon, Vihtavuori, Alliant, Accurate, Ramshot, Normakleanbore 1. Oct 31, 2020. #1. Any long time shooters of the 257 Roberts, a question for you. What powders do you prefer for the heavier bullets, say 90gr-120gr I have IMR 4350, 4064, 3031, Varget , Reloader 15 and others. I know, what shoots good in your rifle may not in mine. Looking for a consensus on where to start. ….

The .257 Roberts, also known as .257 Bob, [2] is a medium-powered .25 caliber rifle cartridge. It has been described as the best compromise between the low recoil and flat trajectory of smaller calibers such as the 5 mm (.22 in) and 6 mm (.24 in), and has more energy, but is harder recoiling, similar to larger hunting calibers, such as the 7 mm ....257 Roberts +P Handload Data (50,000 CUP) reloading data with 19 loads. Using bullets from Hornady V-Max, Speer flat softpoint, Hornady Spire Point, Nosler Ballistic Tip, Nosler Partition, Speer spitzer boat-tail. Powders include Hodgdon, Accurate, Alliant, VihtavuoriPopular names in the World War II era for boys were James, Robert, John, William and Richard; for girls, the top five names were Mary, Linda, Barbara, Patricia and Carol. Topping t... 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] 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 …If we take the Roberts with a 100-grain bullet at 3,000 fps and zero the rifle for 200 yards, bullet drop at 300 yards is only 7.2 inches. Now load the same bullet weight in the .25-06 Remington and pump it up to 3,300 fps, with the same 200-yard zero drop at 300 yards is 5.8 inches, a 1.25-inch difference.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...Find the optimal bullet, gunpowder and charge weight for reloading 257 Roberts ammunition from Norma. Compare the velocities and MRPs of different bullets and ….257 Roberts Improved (RCBS Version) reloading data with 49 loads. Using bullets from Sierra HP, Sierra spitzer, Hornady SP, Nosler SB, Nosler Partition, Speer HP, Speer SBT, Sierra FB, Hornady HP. ... Notes: Test rifle: Enfield sporter with 24-inch Buhmiller barrel (rechambered from .257 Roberts to .257 Improved, with 28-degree RCBS chamber ... 257 roberts reloading data, [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1]