Why isn't .257 Roberts more popular?
I've never actually shot one (yet), but on paper it looks like a good "dual purpose" rifle.
This question came to me a while ago back, when I was trying to decide what caliber to re-barrel an old Mauser in.
.257 seemed the natural choice, as this was originally a 7x57 Mauser and the .257 Roberts is based on the 7x57 case. I took the rifle down to the gunsmith. This is a side story, but he had the rifle for nearly a year and a half and didn't even get started on the project . I took the rifle back last weekend and will need to find someone else to do the work... how long is a re-barrel project supposed to take? I figured I'd get the thing back within a month... Grrrrr.....
Anyway, I've already bought reloading dies and brass and bullets for .257 so I started looking at the load data for this round. As far as I can tell the .257 Roberts should do anything that a .243 will do, only better. So why is the .243 so much more popular? Especially taking into consideration that it came out years later.
I would have thought that the .257, with it's head start, and ability to handle a wider range of bullet weight, would have been the more obvious choice.
I'm looking at the Nosler #6 book, it says that their 115gr .25 cal bullet has a ballistic coeficent of .453, not bad at all. And the .257 will push that bullet along at 2800+ FPS. Also, looking at their ballistic tables, it says that this combo will drop about 13 inches at 300 yards, if the rifle is zeroed at 100 yards. Not the flattest shooter, but not bad. Should be a great Deer round.
On the other end of the scale they show an 85gr bullet with a BC of .329 at 3300+ FPS, with a drop of 9 inches at 300 yards, with a 100 yard zero. Sounds like it would make a decent small game/varmint round.
I guess this is a long post for a quick question: Why isn't the .257 Roberts just as popular as the .243 Winchester?
I've never actually shot one (yet), but on paper it looks like a good "dual purpose" rifle.
This question came to me a while ago back, when I was trying to decide what caliber to re-barrel an old Mauser in.
.257 seemed the natural choice, as this was originally a 7x57 Mauser and the .257 Roberts is based on the 7x57 case. I took the rifle down to the gunsmith. This is a side story, but he had the rifle for nearly a year and a half and didn't even get started on the project . I took the rifle back last weekend and will need to find someone else to do the work... how long is a re-barrel project supposed to take? I figured I'd get the thing back within a month... Grrrrr.....
Anyway, I've already bought reloading dies and brass and bullets for .257 so I started looking at the load data for this round. As far as I can tell the .257 Roberts should do anything that a .243 will do, only better. So why is the .243 so much more popular? Especially taking into consideration that it came out years later.
I would have thought that the .257, with it's head start, and ability to handle a wider range of bullet weight, would have been the more obvious choice.
I'm looking at the Nosler #6 book, it says that their 115gr .25 cal bullet has a ballistic coeficent of .453, not bad at all. And the .257 will push that bullet along at 2800+ FPS. Also, looking at their ballistic tables, it says that this combo will drop about 13 inches at 300 yards, if the rifle is zeroed at 100 yards. Not the flattest shooter, but not bad. Should be a great Deer round.
On the other end of the scale they show an 85gr bullet with a BC of .329 at 3300+ FPS, with a drop of 9 inches at 300 yards, with a 100 yard zero. Sounds like it would make a decent small game/varmint round.
I guess this is a long post for a quick question: Why isn't the .257 Roberts just as popular as the .243 Winchester?