257 roberts reloading data.

.257 Roberts - Published Manufacturer Loading Data Shellholders: Hornady #1 Reloder 16. Select A Caliber or Gauge Below To View Recipes. 243 Win. 25-06 Rem. 257 Roberts. 260 Rem. 270 Win. 270 Win. Short Magnum. .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, AccurateHome / Article/LoadDevelopment. Load the .257 Roberts. Author: Stan Trzoniec / Wolfe Publishing Co. Date: May 13 2019. Examples of .25-caliber cartridges include (left to …

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..257 Roberts (Winchester Rifle Data) reloading data with 5 loads. Using bullets from Hornady SP, Hornady Hollow Point, Sierra Hollow Point Boat Tail, Speer Soft Point Boat Tail, Nosler Part. Powders include WinchesterIt 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 …

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.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.

60. Location. Fernandina Beach. That is interesting, and probably has something to do with the 257 Roberts being the only rifle cartridge that later had a +P designator. I currently don’t own a Roberts, but have loaded for 5 of them. All preferred H4350 and a good 100 gr bullet, such as the TSX or Nosler BT.Hybrid 100-V gives the highest velocities in the Hodgdon manual. Rifles chambered for the 257 Roberts can vary a great deal. I had a 1976 vintage Ruger 77 tang safety Roberts with a sloppy chamber and a very long throat. It would take 43 grains of RL-15 to get a 100 grain bullet to 3,000 fps. 257 Roberts Ackley Improved 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 ... The 257 Improved is a fi ne performer, adding up to 100 fps velocity over its factory cousin. One of its advantages, Ackley noted, is the fact that 257 Roberts factory ammunition can be used in an improved rifl e if necessary. Other 25 caliber wildcats are not this fl exible. The 257 Improved is all that the 257 Roberts is—and a bit more. 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.

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Apr 30, 2012. #7. Quite surprised at the velocity you are getting. You are making a 257 Roberts into a 25-06. I own two, 257 roberts rifles. One is a 50's Mauser with 22" raised-solid barrel and super fancy. It shoots 100 grain Speer bullets @ 3030 fps with 41.5 gr. 4064. Used it for decades and it has worked well..257 Roberts Reloading Data (Using Hornady Bullets) reloading data with 307 loads. Using bullets from Hornady FP, Hornady V-Max or HP, Hornady SP, Hornady GMX, Hornady IB, Hornady SST, BTSP or RN, Hornady HP. Powders include Accurate, Hodgdon, Alliant, IMR, Vihtavuori, Winchester..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. SPTLoad Data for .257 Roberts . Bullet: 115 gr PART (NOS) Diameter: 0.257" Powder: Hybrid 100V (Hodgdon) Starting Powder: 42.0 gr. Max Powder: 46.0 gr .The 6.5/257Roberts is the ballistic twin to the 6.5X57. Much the same way the 30/338 is to the 308 norma. Interstingly, I have a barrel from a Winchester featherwieght, that was rechambered to the Ackley version. I often thought of possibly of boring and rifling it to a 6.5mm,hence a 6.5X257 Roberts Ackley Improved..257 Roberts (Alliant Reloaders Guide 2008) reloading data with 4 loads. Using bullets from Sierra HP, Speer Spitzer, Sierra BTHP. ... .257 Roberts (Alliant Reloaders Guide 2008) ... Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet: Powder Manufacturer: Powder: Charge: Velocity (FPS) 75: Sierra HP: Alliant ...The .257 Roberts is a low recoiling, mild powered cartridge. In a short action, it has the potential for a suitable youth rifle but without care towards optimizing hand loads, can lack the power with many 117 to 120 grain loads to be …

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. Date: Feb 11 2014. N.H. "Ned" Roberts developed the .257 Roberts cartridge during the 1920s by necking the 7mm Mauser case to accept .257-inch bullets, and by changing the shoulder angle from 20 to 15 degrees. Roberts was a well-known experimenter and gun writer, and his cartridge became a popular wildcat among custom rifle builders and hunters. 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: ...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 ...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)Plus, you can save favorites, add notes and more. Reloading data is available as low as 99¢ per cartridge or as a subscription for $19.99. Below you’ll find some basic data for each cartridge to help get you started. Basic Load Data. Hornady Manufacturing Company develops and publishes reloading data for the Handbook of Cartridge Reloading.

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 ...Stan'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 ...

Join Date: March 2, 2010. Posts: 28. 257 Roberts Modern Data. I have asked similar before, but now I am about to load my test loads this weekend and hate going in blind. Here is the loading data from Hodgdon's website for my selected powder and bullet for .257Roberts. Notice that it is a conservative load meant to be safe for older Mausers. .257 Roberts reloading data with 91 loads. Using bullets from Hornady HP, Barnes TTSX BT, Hornady GMX, Sierra HPBT, Speer SPBT, Nosler Part. Powders include IMR 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 ....257 Roberts (using Alliant's RL-16) reloading data with 2 loads. Using bullets from Nosler Ballistic Tip, Hornady SST. ... .257 Roberts (using Alliant's RL-16) Warning! Barrel Length: 24 inches; Primer: Federal 210; Source: Handloader Magazine issue #306 February-March 2017. ... Publisher cannot be responsible for errors in published load …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.Master Loader. Apr 6, 2006. 17,500. 4,699. Walt Berger used those bullets, in a .257 Roberts to take a HUGE red stag in New Zealand. I've used them on three mule deer, from my .25-06, with good results - but my load data won't help you at all.The history of the .257 Roberts dates back to the 1920's, when a wildcatter by the name of Ned Roberts began to experiment with the .257” caliber. It has been suggested that Charles Newton persuaded Roberts to settle on the 7x57 case design and that close friend Col. Townsend Whelen suggested a 15 degree shoulder.Jan 12, 2020 ... The 950 JDJ FAT MAC (The World's Most Powerful Rifle!!!) · 1.4M views ; 35 Whelen loads for a tc compass · 3.5K views ; Well I found some reloade...Safety Data Sheets; Shipping & Delivery; Warranty; Login 0. 0. My Cart. 0. 0. Search suggestions. Site Search. Cartridge Selector (Tap to open) ... .257 ROBERTS IMPROVED 40° RELOADING ESSENTIALS .257 ROBERTS RELOADING ESSENTIALS .257 WEATHERBY MAGNUM RELOADING ESSENTIALS .25 AUTO (25 ACP) …

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Revised 12/2009 Indicates most accurate load. Bullet Weight:80 grCase Trim Length:2.223"S.D.0.173. Bullet Style:TTSX BTPrimer:Fed 210B.C.0.316. COAL:2.830"Barrel Length:24". Case:W-WTwist Rate:1:10". Charge Velocity Charge Velocity Load Powder (grains) (fps) (grains) (fps) Density (%) H380 43.0 3108 47.0 3415 89 H414 43.5 3109 47.5 3399 87 RL ...

.257 Roberts (Winchester Model 70) reloading data with 7 loads. Using bullets from Hornady HP, Speer SP, Sierra BTHP, Hornady SP. ... .257 Roberts (Winchester Model 70) Warning! ... (Rifle Issue #106 - July, 1986) Be Alert: Publisher cannot be responsible for errors in published load data. Wt. Bullet: Powder Manufacturer: Powder: Charge ... 257 Roberts +P 2793 2858 2852 2836 2826 2770 2767 2758 2709 2705 2635 2545 2541 2527 2482 2003 START CHARGE 2817 WARNING: Improper handloading practices can result in serious personal injury and/or property damage. Refer to the current SPEER® Reloading Manual for handloading instructions. Be thoroughly familiar with those instructions before ... Hybrid 100-V gives the highest velocities in the Hodgdon manual. Rifles chambered for the 257 Roberts can vary a great deal. I had a 1976 vintage Ruger 77 tang safety Roberts with a sloppy chamber and a very long throat. It would take 43 grains of RL-15 to get a 100 grain bullet to 3,000 fps.Popular 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...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 ...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..257 Roberts (Reduced Loads) reloading data with 4 loads. Using bullets from Hornady Flatnose, Sierra ProHunter, Nosler Partition. Powders include IMR, Hodgdon56 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..257 Roberts (using Alliant's RL-16) reloading data with 2 loads. Using bullets from Nosler Ballistic Tip, Hornady SST. ... .257 Roberts (using Alliant's RL-16) Warning! Barrel Length: 24 inches; Primer: Federal 210; Source: Handloader Magazine issue #306 February-March 2017. ... Publisher cannot be responsible for errors in published load …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 ...

.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 …Oct 11, 2022 ... .257 Roberts is a good cartridge for deer. Had a friend kill 25 whitetails with the first and only rifle that he owned, a .257 Roberts. Reloder 16. Select A Caliber or Gauge Below To View Recipes. 243 Win. 25-06 Rem. 257 Roberts. 260 Rem. 270 Win. 270 Win. Short Magnum. Instagram:https://instagram. large blackheads removal videos Feb 16, 2024 ... In this video we show you how convert 30-06 cases to 257 Roberts. ... Reloading, How to Reform Brass ~ Use What You Have! ... Kentucky Ballistics• ...The .257 Roberts was the premier combination varmint/deer cartridge until the .243 Winchester and .244 Remington were introduced in 1955. These cartridges were highly touted by Warren Page, the Shooting Editor at Field & Stream magazine, and appeared to be ballistically superior to the .257 Roberts. harbor freight nailers .257" 25 Spitzer SP Hot-Cor® 25 HP 25 Spitzer BTSP Weight (grains) 100 Ballistic Coefficient 0.334 0.263 0.393 Sectional Density 0.1260.216 COAL Tested 2.770"2.760" Speer Part No. 1405 1407 1408 Propellant Case Primer Weight (grains) Muzzle Velocity (feet/sec) Weight (grains) Winchester 760 Winchester CCI 250 41.0 2804 45.0Load data for 39 loads in caliber .257 Roberts with .257 | 100gr | Sierra SBT GameKing bullet including underlying parameters such as bullet length, ... fragale's bakery 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, …Barrel Length: 24 inches; Twist: 1-10 inches; Case: Remington; Primer: Winchester Magnum (WLRM). Be Alert: Publisher cannot be responsible for errors in published load data. Wt. .257 Roberts (Norma data) reloading data with 20 loads. Using bullets from Hornady SP, Nosler Partition, Nosler BST, Hornady RN. Powders include Norma. k'lynn's southern and cajun fusion I have a Howa 1500 that has been rebarreled by E.R.Shaw to .257 Roberts with a 24" magnum contour barrel with 1:10 twist. It is topped with a Weaver V10 scope in Leupold mounts. I'm planning to make this my main deer rifle and hopefully print tiny groups with it too. I'm planning to use heavier bullets of 110-120 grains at modest velocity, 2600 ... houses for rent to own in chattanooga tn 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 ... I have a Howa 1500 that has been rebarreled by E.R.Shaw to .257 Roberts with a 24" magnum contour barrel with 1:10 twist. It is topped with a Weaver V10 scope in Leupold mounts. I'm planning to make this my main deer rifle and hopefully print tiny groups with it too. I'm planning to use heavier bullets of 110-120 grains at modest velocity, 2600 ... jencare mechanicsville .257 Roberts (Sierra Data - Edition V) Warning! Notes: firearm used: Winchester M70; bbl. length/twist: 22"/1x10"; cases; Winchester; trim-to-length: 2.223"; primers: Remington 9 1/2; loads less than minimum charges shown are not recommended; use maximum loads with caution: Be Alert: Publisher cannot be responsible for errors in published load ...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. power outage ct map .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 ...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. garbage pickup schedule milwaukee The 257 Improved is a fi ne performer, adding up to 100 fps velocity over its factory cousin. One of its advantages, Ackley noted, is the fact that 257 Roberts factory ammunition can be used in an improved rifl e if necessary. Other 25 caliber wildcats are not this fl exible. The 257 Improved is all that the 257 Roberts is—and a bit more. kolby ingram .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 ...MRP stands for Magnum Rifle Powder. To answer your question about velocity, how about 3,607, 3,573 for a 5 shot average. The barrel is a Shilen ... kandahar giant of afghanistan 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: REM. Trim Length: 2.223" Cartridge Overall Length: 2.890" Starting Velocity: 2,595. Starting Pressure: 38,800. Max Velocity: 2,831. Max Pressure: 46,000 CUP. rolled sleeves marine corps The .257 Roberts certainly has a great deal of history behind it, yet is a story filled with contradictions whether discussing history or usage. One account suggests that had Ned Roberts been able to take advantage of slow burning powders, he most likely would have adopted the .30-06 case to maximize velocity, wounding and fast killing. 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 ...