270 to 280

The .280 won't do anything a .270 can't. Like Blastattack says, in a standard hunting rifle there won't be enough barrel. Never mind the cost.
 
The .280 never caught on because it offered no practical advantage over the .270. If you want to maximize the .270, you could get the rifle rechambered to .270 Ackley Improved.
 
Actually, there is just enough meat. I had exactly the critter the OP was asking about. It was done by a fellow that used to work for Ed Karrer in Millhaven, Washington. The barreled receiver and bolt were sent to him for two reasons. One, he claimed he could do it for about half the price of a new barrel install. Two, the leades were washed out for about an inch.

I sent him a Mod 70, chambered in 270win with a washed out throat. The smith, set back the shoulder about an inch, bored out the barrel, cut new rifling and rechambered it to the 280rem. The bore was very tight and I am only surmising that he actually followed what was left of the original rifling to cut the new rifling on the new bore. The rifling he cut was .005 deep. It took less than a month from the time I mailed the rifle to him until I got it back. This was appx 1978.

That rifle shot extremely well. I gave it to the son of a very good friend in 2005. Hated to see it go but it is well appreciated and cared for where it is. Also, it gets used a lot more.

Whether or not it would be worthwhile for a barrel maker or gunsmith to do such a thing today is questionable.
 
The 280 was underloaded due to use in the "weaker" semi and pump 740/760 action, pumped up to 270 pressures in a bolt action will give higher velocities than equivalent weights. Ie 140,150,160 grain pellets, also have option for 175 great bullets.
 
If the barrel is worn considerably it would be easier to install a new barrel. Only a barrel maker that does cut rifling would have the capability to do that job... but you would end up with a shorter barrel as the muzzle would need trimming (usually an inch) after rifling... and because the tolerance of a .270 and a .280 are so close the barrel maker may not want to attempt it.

The .280 Remington is a superior cartridge when loaded to the same pressures as the .270 Winchester.
 
teenahlake said:
The 280 was underloaded due to use in the "weaker" semi and pump 740/760 action, pumped up to 270 pressures in a bolt action will give higher velocities than equivalent weights. Ie 140,150,160 grain pellets, also have option for 175 great bullets.
Click to expand...

Didn't / don't the Remington pumps and semis come in .270?
 
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