Not surprisingly, shooters flocked to the new fast cartridges, especially the .243 Winchester. Store hours Thurs-Fri-10AM-8PM Sat-9AM-12PM All Other times please leave a message,Thank You! Fortunately, there is a reasonably straightforward way to do this. Partition, elk could also be on the menu! 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. lbs., MPBR = 265 yards (Zero at 225 yards). Tom and his wife Shirley had picked up a new gun for Shirley to use hunting. Firearms experimenter Ned H. Roberts created what was to become the .257 Roberts commercial cartridge during the mid-1920s. Basically, he necked down the 7x57mm Mauser case to take .257 inch diameter (standard .25 caliber) bullets. 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. MPBR and zero distances are rounded to the nearest five yards. My example is a Federal Premium .243 Winchester load with a 100 grain soft point spitzer bullet. 12 months. ), 265 yard KPS = 15.9 (Energy = 1235 ft. RUGER & COMPANY INC RUGER HAWKEYE .257 ROBERTS 17130, .257 ROBERTS KIMBER 84M MONTANA 257ROBERTS NIB, .257 ROBERTS REMINGTON SEVEN CDL CURLY MAPLE 257 (NIB) RARE 26399 22 INCH " BARREL, .257 ROBERTS SEVEN CDL REMINGTON MODEL 7 22" ROBERT CURLY MAPLE STOCK LIMITED RUN 85906 22 INCH " BARREL, .257 ROBERTS REMINGTON SEVEN CDL CURLY MAPLE 257 (NIB) HARD TO FIND 26400 22 INCH " BARREL, .257 ROBERTS RUGER & COMPANY INC RUGER NO. Eventually in 1934 Remington Arms chose to introduce their own commercial version of such a cartridge, and although it wasn’t the exact dimensions of the wildcat made by Roberts, they called it the .257 Roberts. 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. 1 257 Single Shot Rifle 11382, .257 Roberts Remington Model Seven CDL 257 NIB Maple stock 22 inch " barrel, Remington Model Seven Cdl limited .257 Roberts Curly Maple #85906 22 inch " barrel, No. The downrange data are needed to do hunting capability index calculations. Partition, or the 110 gr. It is clear that the .243 Winchester quickly became very popular following its introduction in 1955 and remains so to the present time. lbs. Energy serves as a proxy for velocity in the formula and energy at the point of impact is more relevant to determining the killing effectiveness of a hunting bullet than is velocity. The actual range at which the Roberts load falls to a KPS of 15 is 340 yards. All I will say is that anyone who has a .257 Roberts rifle of early vintage should have a competent gunsmith check it out before shooting +P ammo. : Doubletap 100 gr. I started with the baseline KPS for the .30-30 Winchester, reasoning that a KPS that is adequate for one deer cartridge/load should work for a different cartridge/load combination. 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. ", "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. .257 Load #2: Hornady Superformance, 117 gr. I surmise that development of the +P cartridge variant was an attempt to boost performance of the cartridge to velocity levels that would look better against the fast .243s. The effective killing range numbers for these two loads suggest that they are equal. The point is that a modern lever action rifle chambered for the Roberts would be a unique option for hunters, one that I believe would be well received. (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. Someone had finally purchased my 318 Westly. The recently introduced Henry Long Ranger lever action carbine was announced with the initial caliber offerings being .223 Remington, .243 Winchester and .308 Winchester, with more calibers promised in the future. ), 200 yard KPS = 17.7 (Energy = 1371 ft. Since this was my first time out West for antelope, cartridge choice was an important consideration. All rights reserved. Thus, the 100 yard KPS of this load is: This is merely an example, as KPS can be calculated for any range. What is the best barrel length for the 25/06 22, 24, 26. of energy at 100 yards. ), 275 yd. classification system uses an online calculator to produce a numerical HITS score for rifle cartridge loads. The Remington Model 742, also known as the Woodsmaster is a semi-automatic rifle that was produced by Remington Arms from 1960 until 1980. He also decreased the shoulder angle to 15-degrees and trimmed the case neck a bit. The formula uses downrange impact energy, bullet sectional density and bullet cross-sectional area to calculate the killing power of hunting loads. (Assuming a +1.5 inch line of sight.) (20 inch barrel), ME 1862 ft. .257 Roberts Winchester 70 1948 pre-64 257 Roberts! This capability is important in ways I will demonstrate. The next load is the hottest Roberts factory load of which I am aware, driving a 117 grain bullet at an estimated 2845 f.p.s. However, before Henry could justify offering the Long Ranger in .257 Roberts, they would have to be convinced that hunters would buy it. Whenever any of these variables change, the KPS number changes proportionally. 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. It was a Remington semi-auto 3006. The KPS formula makes a lot of sense to me. 257 Roberts. lbs. 1 257 SINGLE SHOT RIFLE 11382, .257 ROBERTS REMINGTON MODEL SEVEN CDL 257 NIB MAPLE STOCK 22 INCH " BARREL, REMINGTON MODEL SEVEN CDL LIMITED .257 ROBERTS CURLY MAPLE #85906 22 INCH " BARREL, RUGER & COMPANY INC Ruger Hawkeye .257 Roberts 17130, .257 Roberts Kimber 84M Montana 257Roberts NIB, .257 Roberts Remington Seven CDL Curly Maple 257 (NIB) Rare 26399 22 inch " barrel, .257 Roberts Seven CDL Remington Model 7 22" Robert Curly Maple Stock Limited Run 85906 22 inch " barrel, .257 Roberts Remington Seven CDL Curly Maple 257 (NIB) Hard to find 26400 22 inch " barrel, .257 Roberts RUGER & COMPANY INC Ruger No.

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