: Doubletap 100 gr. Though in some circles the 257 Roberts may be considered an obsolete cartridge overshadowed by several other cartridges, several times over past decades the Roberts has experienced a resurgence of interest. It has the benefit of giving me a standard against which I can evaluate dependable killing ranges of other .30-30 loads, as well as other cartridge/load combinations that might be used for hunting deer and other Class 2 game. (The .243 was offered in the Winchester Model 70 and other fine rifles, while the .244 was offered in the clunky Remington Model 722.) My purpose here is to propose (or plead for) a resurrection of the .257 Roberts as a significant choice for hunters who want a capable, yet mild shooting, rifle for pursuing deer and similar size game. I do use the +P WW brass. The .257 was very popular in the '50's and in Inlet, N.Y. a guy killed a 400+ bear just outside of town with one shot from a .257. My example is a Federal Premium .243 Winchester load with a 100 grain soft point spitzer bullet. ), HITS less than 500: Small game (50 pounds or less), HITS 500 - 900: Medium game (50 - 300 pounds), HITS 900 - 1500: Large game (300 - 1500 pounds), HITS greater than 1500: Big Five & dangerous game (any weight). Although, as stated previously, Remington no longer makes a .257 Roberts, you can still find them in the model 760 at gun shows. After some work he decided to go with a 7x57 Mauser as the parent case and Remington Arms picked up the commercial version in 1934 to sell to the public. The .257 Roberts, also known as .257 Bob, is a medium-powered .25 caliber cartridge.It has been described as the best compromise between the low recoil and flat trajectory of smaller calibers such as the .22 and 6mm, and the strong energy but not the strong recoil of larger popular hunting calibers, such as the 7mm family and the popular .30-06. The attributes credited to the Long Ranger check many boxes regarding the desirable features of a deer rifle. The .257 was designed to run in a bolt gun, and any receiver that was designed for the 7x57mm Mauser will handle the .257 Roberts perfectly. I realize that setting a KPS of 15 as a baseline power standard for the .30-30 load is a judgment call, but I am comfortable with it. The .243 Win. I said at the outset that the .257 Roberts did not deserve to be shoved into obscurity. SST bullet, BC .390, MV 2845 f.p.s. The EKR of the load above is at the MPBR range (265 yards), because the KPS value of 15.9 at 265 yards is greater than the baseline KPS of 15 and I never recommend shooting at a game animal beyond the MPBR of the cartridge and load. lbs. For instance, between 100 and 175 yards, the energy of the 150 grain .30-30 bullet decreases by 27.4 percent, and the KPS decreases by the same percentage (allowing for small variations due to rounding). Firearms experimenter Ned H. Roberts created what was to become the .257 Roberts commercial cartridge during the mid-1920s. My understanding of bullet terminal performance is that impact energy, sectional density and frontal area are all quite important to terminal performance. However, the .243 Winchester cannot match the .257 Roberts as a big game cartridge, although the .243 is arguably a more efficient heavy varmint round. What if .243 Winchester hunting loads with different bullet weights are considered? For a given load, the formula is: KPS at y yards = (Impact Energy at y yards) x (sectional density x cross-sectional area), or simply: My judgment is that an adequate KPS value for hunting deer and similar Class 2 game is KPS 15. I don't think the .257 will ever make a strong re birth. However, factory .257 ammunition continued to be loaded to 1930’s velocities until almost 1990. Meanwhile, although I declared the EKR of the .257 Roberts load to be equal to its MPBR of 275 yards; the KPS of the .257 load is 13% greater than the .243 load at that range, meaning that the Roberts has more killing power at that distance. The only watch-point for the Hawkeyes in .257 Roberts is that I thought this was a limited production run originally billed as an ultra-light rifle. Thus, HITS scores are keyed to that distance. Those who reflect on the decline of the .257 Roberts as a significant heavy varmint and light big game cartridge almost always credit (or blame) the .243 Winchester. The Hornady H.I.T.S. See The G&S Online Rifle Cartridge Killing Power Formula: Implications and Applications and Determining the Effective Killing Range of Rifle Cartridges for fuller discussion of the killing power formula and effective killing range concepts. ), 275 yd. VG condition. The .257 Roberts cartridge does not deserve to be shoved into obscurity. Factory ammo can still be found, especially if you shop fully-stocked gun stores or gun shows. hunting loads tell the same story. lbs. I used two-piece mounts, fairly light, but in order to give the rifle its best chance to meet its sub-m.o.a. Winchester - Model 70, .257 Roberts, 24” barrel, claw extractor bolt action rifle, 1949 manufacture date, metal is in 99% condition, perfect bore showing very little if any, use, w... (read more) Gun #: 978363034 To begin the ballistic analysis of the loads, I used the point blank range calculator at www.shooterscalcualtor.com to calculate a +/- 3 inch maximum point blank range (MPBR) for the load. Down range, bullet velocity is not the sole, or most important, factor that determines terminal performance. At the Orvis flagship store in Manchester, Vermont, I found a brochure at the counter highlighting the rifle. Whenever any of these variables change, the KPS number changes proportionally. By comparison, the fastest heavy bullet .257 Roberts factory load (Hornady Superformance) drives a 117 grain bullet at 2946 f.p.s. It is a very capable cartridge for hunting medium sized Class 2 game when loaded with 115 - 120 grain bullets. Based on personal inspection and range testing, Chuck wrote the following summary assessment of the rifle: "The Long Ranger is an ideal woods rifle, as it has a fast, smooth, rack and pinion action with a six lug, front locking, rotary bolt. 1-2 shots and done. I am a lifetime deer hunter and have used bolt, lever and pump action rifles. lbs. (20 inch barrel), ME 1862 ft. Pre 64 Model 70 Winchester Rifles For Sale And Remington Model This is a standard 100 grain .243 Winchester factory load at a MV of 2960 f.p.s. The .257 Roberts is a low recoiling, mild powered cartridge. ", "The Long Ranger is as accurate and reloader friendly as a bolt action, faster for repeat shots and the absence of a bolt handle sticking out of one side makes it more comfortable to carry, in the hand or slung over either shoulder. The point is that KPS and Effective Killing Range can be very useful tools for shooters who want to evaluate the killing performance of different cartridges and loads. I also noted the zero distance of the load. However, it was not until I was introduced to the .257 Weatherby that my idea of what a quarter bore should be about. The hottest .243 Winchester factory load I was able to identify for the article The .243 Winchester: Its Capabilities as a Deer Cartridge specs out as follows. Hunters, in turn, would need to be convinced that the .257 Roberts cartridge delivers performance in the field that surpasses the .243 Winchester, which is already being offered in the Long Ranger rifle. Detachable, steel sling swivel studs and a contoured, effective recoil pad are standard equipment. The 257 Roberts cartridge has a very interesting and curious history. Cartridge Type: Rifle Height: 2.233" 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. Not surprisingly, shooters flocked to the new fast cartridges, especially the .243 Winchester. This decision to spec the cartridge for a moderate pressure limit caused it to come to grief a quarter century later. lbs. I did some estimates of recoil with the heavy hunting loads I have featured. The KPS formula combines these variables in a direct, easy to calculate way. ), 100 yard KPS = 20.4 (Energy = 1826 ft. However, before Henry could justify offering the Long Ranger in .257 Roberts, they would have to be convinced that hunters would buy it. .257 Load #3: Federal Vital-Shok, 120 gr. MV (24 inch barrel). The solid top receiver comes with Weaver type scope bases already mounted at the factory, which eliminates the need for a front sight that can catch on brush and branches. (Not quite the same range, but very flat shooting.) in. Anyone who disagrees with the baseline KPS I used here may change the analysis to use any cartridge, load and ballistic parameters they feel accurately reflect effective killing power and range, for deer or other game. Copyright 2017 by Gary Zinn and/or chuckhawks.com. The commercial Remington version of the .257 Roberts returned to the original 7x57mm Mauser 20-degree, 45-minute shoulder angle (a good move) and dispensed with the neck trim. lbs., depending on the load in question. Hopefully, this process will become clear after we look at some data. (20 inch barrel), ME 2103 ft. Next, I developed a trajectory table for the load using the ShootersCalculator trajectory calculator. ), SD .226, A = .0745 sq. Maybe that is reason enough for some to discover it for the first time. Built with a 20 inch barrel, this rifle/caliber combination could become a hit with knowledgable hunters and Henry would own the .257 Roberts rifle market. First, like others in the hunting fraternity, the rifle was the main draw. The introduction of DuPont Improved Military Rifle Powder Number 4350 in 1940 – at the time, the slowest burning powder available to handloaders – really did improve velocities in many centerfire cartridges, including the .257 Roberts. This was 1346 ft. lbs. It is a shame that Remington did not specify the .257 Roberts for a MAP of 50,000 CUP in the first place. Hornady HITS scores for .257 Roberts and .243 Win. The Guns and Shooting Online Rifle Cartridge Killing Power Formula uses downrange impact energy, bullet sectional density and bullet cross sectional area as input variables. Having used both the 257 Roberts and the 243 for deer, I would choose the Roberts in a heartbeat over the 243. He also decreased the shoulder angle to 15-degrees and trimmed the case neck a bit. (Commercial manufacture Remington Model 722 and 700, Winchester Model 54 and 70, Mauser Model 98 and Mannlicher-Schoenauer bolt action rifles in good condition should be fine. Shipped in a hard case. Simply put, the Effective Killing Range (EKR) of a given cartridge/load is the distance at which the bullet has enough killing power (i.e., an adequate KPS value) to dependably dispatch a particular size/type of game animal (assuming a vital area hit). Ruger 77 257 Roberts Rifle And Ruger American Rifle 17 YOU ARE IN THE RIGHT PLACE TO GET CHEAP PRICES PRODUCTS HERE. (Assuming a +1.5 inch line of sight.) Despite using lighter bullets in factory loads, the 257 Roberts has been called an ideal cartridge for deer, antelope, black bear, sheep, goats, or long-range varmint hunting. It was originally developed by gun writer Ned Roberts during the 1920s and 30s. I show data workups for three .257 Roberts factory hunting loads below. This comparability can be applied not only to different loads for a particular cartridge, but also can be extended to comparisons of different cartridges. Using deer and similar size game as an example, some popular cartridges, such as the .270 Winchester and .308 Winchester, are so powerful that there is no question that they will dependably fell Class 2 game out to their MPBR range or beyond. All of the .257 Roberts loads listed above blow this .243 load away. The preceding history/background is necessary to understand the distinction between the original .257 Roberts cartridge and its later variant called the ".257 Roberts +P." .257 Load #2: Hornady Superformance, 117 gr. lbs., MPBR = 275 yards (Zero at 235 yards). (20 inch bbl. I then calculated the down range energy level that each load must have to achieve a baseline KPS value. load, detailed above, is 694. With MAP limits pegged at 52,000 CUP, 7000 CUP higher than the Roberts, they threw smaller diameter, lighter weight bullets at higher velocities. Ruger has also chambered the 257 Roberts in its Model 77 bolt gun, though most other makers have now dropped it from their lineups. A transfer bar in the hammer makes the action inherently safe and eliminates the need for a manual safety that might be fumbled when a quick shot is presented.". 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