I think some people here fail to understand that in order to achieve what a cartridge is designed to do, in many instances a particular length barrel or twist rate is required. Will they shoot bullets with ‘other’ lengths or twists, sure,,but then there are other calibres/chambering a which would be more sensible for the same outcome.
Why shoot a 20” 270 when you get unburned propellant, muzzle flash, muzzle erosion, noise, lower velocity and high recoil for outcome, than what makes the 270 what it is..
It’s like a 7mm Rem Mag in under 24”, even 26” or more is better..one might as well shoot a 7-08 and have the same but more pleasant outcome.
A lot of manufacturers these days make misc Cal/chambering offerings in short silly barrels because
A. They think people are stupid
B. They think people ‘want’ short barrels as these days people have this dumb habit of throwing themselves on the ground with a bipod when they see a deer..so good rifle ‘balance’ is perceived as less important.
C. They think most will want a short barrel so when those ugly things that reduce noise are screwed on the end, it’s not 36” long
Do manufacturers know they are making non-sensible barrels, hell yeah.
Just look at the new Mauser m18’s,
Bloody silly all of them apart from the 308. Even the 6.5CM has the wrong twist so it can’t handle the bigger pills ..Morons...OR, are the morons the people who buy them thinking they were made fit for purpose