Most of the 20th century cartridges were designed with round-nosed or short-ogive spitzer type bullets in mind. Even the somewhat modern .308-based series of cartridges have a forward shoulder that if very long, low drag bullets are seated in them the result is a overall length that exceeds the magazine or receiver length.
For exampe, the .260 Remington. Let's take a 153 grain A-tip Match bullet and seat it. It will be a very long cartridge indeed. Another: how about a 230 grain A-tip in a 300 Winchester Magnum case. It seems certain these combinations will exceed the magazine length and the length of the action/receiver on a typical bolt action rifle. There may also be twist-rate issues with conventional barrels for these chamberings.
Otherwise, can these long bullets chamber? Suppose we have a single-shot Thompson Center or Ruger No. 1, or we just pull the bolt out the back of the receiver and load the cartridge from behind. Will these long bullets fit in the chamber made for more traditional cartridges? I suspect they would, but I've never tried it. Could the bullet be impeded by the rifling?
For exampe, the .260 Remington. Let's take a 153 grain A-tip Match bullet and seat it. It will be a very long cartridge indeed. Another: how about a 230 grain A-tip in a 300 Winchester Magnum case. It seems certain these combinations will exceed the magazine length and the length of the action/receiver on a typical bolt action rifle. There may also be twist-rate issues with conventional barrels for these chamberings.
Otherwise, can these long bullets chamber? Suppose we have a single-shot Thompson Center or Ruger No. 1, or we just pull the bolt out the back of the receiver and load the cartridge from behind. Will these long bullets fit in the chamber made for more traditional cartridges? I suspect they would, but I've never tried it. Could the bullet be impeded by the rifling?