and 7.62 mm (.30 in). Nominal bullet diameter of the .257 Roberts is .257 inches. The .257 Roberts uses the same caliber bullets as .250 Savage or the more...

.257 Weatherby Magnum, usually running 200–300 ft/s (61–91 m/s) slower with a given bullet weight, but almost 200 ft/s faster than the .257 Roberts at...

The .257 Weatherby Magnum is a .257 caliber (6.53 mm) belted bottlenecked cartridge. It is one of the original standard length magnums developed by shortening...

the .257 Roberts. Arguably it is a better overall cartridge for hunting than the more popular .30-30, but in recent years has lost ground to the .257 Roberts...

Machine" from Accurate Powder ".250-3000 Savage"data from Accurate Powder ".257 Roberts Archived 2010-11-05 at the Wayback Machine" data from Accurate Powder...

S. Navy frigate Roberts Cycles, a cycle manufacturer (also known as Chas. Roberts) Roberts Radio, a radio manufacturer .257 Roberts, a medium-powered...

the 257 Roberts and 250 Savage both use a .257 inch projectile; both 250 Savage and 257 Roberts rifle bores have a .250 inch land diameter and .257 inch...

Remington Arms Company as the .244 Remington, is based on a necked down .257 Roberts cartridge (itself a necked-down 7×57mm Mauser) using a .24/6mm bullet...

antelope. Its predecessor in the Winchester lineup, the very similar .257 Roberts, could have easily been selected to accomplish the same tasks, but was...

Machine" from Accurate Powder ".250-3000 Savage"data from Accurate Powder ".257 Roberts Archived 2010-11-05 at the Wayback Machine" data from Accurate Powder...

cartridge introduced by Remington in 1934 and named the .257 Roberts. Development of the .257 Roberts Roberts announced in the March 1928 issue of American Rifleman...

chamberings included the .22 Hornet, .220 Swift, .250-3000 Savage, .257 Roberts, .270 Winchester, 30-30 Winchester, .30-06 Springfield, 7x57mm Mauser...

excessively quick twist rate. The .257 Roberts Ackley Improved is a second generation wildcat cartridge based on the .257 Roberts cartridge. Wikimedia Commons...

pressures are the 9mm Parabellum, .38 Special, .45 ACP, .38 ACP, and .257 Roberts which are all cartridges that date from the late 19th and the early 20th...

particular were commonly rechambered to 6.5×.257 Roberts, a wildcat cartridge made using the readily available .257 Roberts cases with the neck expanded to use...

1979–1981 .257 Roberts, ammunition Robert le diable, an opera by Meyerbeer Dictionnaires Le Robert, a publisher of dictionaries founded by Paul Robert Petit...

Jeffery Rook .256 Gibbs Magnum .256 Newton .256 Winchester Magnum .257 Roberts .257 Weatherby Magnum .26 Nosler .260 Remington .264 LBC-AR .264 Winchester...

rounds such as the .257 Weatherby Magnum. In fact, ballistically it's almost identical to the improved version of the .257 Roberts, which P.O. Ackley said...

gunsmithing work for Roberts and Kimball in Woburn, Massachusetts. (The latter was an early semi-custom maker of rifles chambered in .257 Roberts.) Hyde was the...

250-3000 Ackley Improved, an improved .250-3000 Savage .257 Ackley Improved, an improved .257 Roberts .260 Ackley Improved, an improved .260 Remington .270...

22-250 Remington 6mm-250 .243 Winchester 6mm Remington 6mm Creedmoor .257 Roberts 6.5×51 NATO (wildcat) 7.62×51mm NATO necked down to 6.5 mm w/ 30-degree...

6mm PPC 6mm Remington .243 Winchester .25-06 Remington .250 Savage .257 Roberts .257 Weatherby Magnum - In Current Production as of 2024 6.5mm Remington...

in the Browning BLR: .22-250 Remington .222 Remington .223 Remington .257 Roberts (Discontinued) .25-06 Remington (Limited run of 150 for Kones Korner)...

30-06 Springfield, .25 Rem, .30 Rem, .32 Rem, .35 Rem, 7mm Mauser, .257 Roberts. On these guns, the aperture receiver sight was omitted and replaced...

Landmarks". The New York Times. Retrieved April 25, 2015. Roberts, Les. The Poison Plum. Les Roberts. Archived from the original on 2007-12-13. The Plum Island...

Journal of African American History, Vol. 90, No. 3 (Summer, 2005), p. 257. Roberts, Randall (August 27, 2015). "Why was J.J. Fad and its 'Supersonic' success...

 206–207: Goodnight Vienna; Harry 2004, pp. 262: "Only You"; Harry 2004, p. 257; Roberts 2005, p. 479: peak UK chart position for Goodnight Vienna, "Only You"...

30 Express (US – Bolt-Action Rifle – 7×57mm Mauser, .25 Remington, .257 Roberts, .30 Remington, .30-06 Springfield, .32 Remington, .35 Remington) Remington...

the competition, but excelling at it, with Major Ned H. Roberts (inventor of the .257 Roberts cartridge) describing the Model 1885 Single Shot as "the...

a 257-gon is a polygon with 257 sides. The sum of the interior angles of any non-self-intersecting 257-gon is 45,900°. The area of a regular 257-gon...