Mell Who makes 257 Roberts rifle?
257 Roberts was introduced by Remington in 1934. Remington has a long track record of “legitimizing” wildcat cartridges; other success stories have included the . 22-250, .
What is 257 Roberts ammo?
The 257 Roberts is basically a 7×57 Mauser case necked down to take a . 257 diameter bullet. The Roberts was designed in the 1920s, and Remington commercialized it in 1934. Remington all but buried the Roberts in 1969 when it introduced the . 25-06 Remington, a 30-06 case necked down to take a 25-caliber bullet.
What is the parent case of the 257 Roberts?
25 ACP pistol caliber which is 6.35 mm (. 251″). The . 257 Roberts uses the same caliber bullets as ….
| .257 Roberts | |
|---|---|
| Parent case | 7×57mm Mauser |
| Case type | rimless bottlenecked |
| Bullet diameter | .257 in (6.5 mm) |
| Neck diameter | .290 in (7.4 mm) |
How far can a 257 Roberts shoot?
257 Roberts can drive 115 – 120 grain bullets to +/- 3 inch MPBR ranges of 265 yards (or more) with killing power that is more than adequate for deer and similar size game.
What case is the 257 Roberts based on?
57mm Mauser
| .257 Roberts | |
|---|---|
| Variants | .257 Roberts +P, .257 Roberts Ackley Improved |
| Specifications | |
| Parent case | 7×57mm Mauser |
| Case type | rimless bottlenecked |
What are the dimensions of a bartlein rifle barrel?
If you’d like to see the weights and dimensions of the standard contours I mentioned (like Heavy Palma, Remington Vamint, Medium Palma, MTU, M24, and Heavy Varmint), here is a good resource that I reference all the time for those details: Bartlein Barrel Contours.
What kind of barrel does a precision rifle use?
Marksman Contour – This contour was developed by Hawk Hill Custom for the precision rifle matches. They feel like “it is it is a perfect balance of weight to barrel length.” It is between a Medium and Heavy Palma, and a little closer to heavy than medium.
When did Remington come up with the 6mm cartridge?
In the early 1950’s, Remington engineers began research towards a 6mm cartridge suitable for varmints through to deer. Having settled on the .257 Roberts case as the base for their design, the project members focused on suitable bullet weights.
How big is a 3.25 ” precision rifle barrel?
It is between a Medium and Heavy Palma, and a little closer to heavy than medium. It is 1.25” for 3” then has a palma contour down to 0.87” at 28”. That barrel weighs approximately 5.3 lbs at 28”. GAP #6 Contour – I asked George Gardner, GAP President, about this contour and he said this is a modified Remington Varmint contour.