I'm thinking of getting a barrel for my 223 for shooting only lighter bullets, say 53 grains and less, mostly will be for 50 and less. A recent discussion on another board suggested a 14 twist would be the desired twist for match bullets in the 52-53 grain range. I'm wanting to shoot 40 to 53 grain only as I already have a 9 twist barrel for anything heavier I might want to shoot. I've got a 22-250 with a 14 twist that likes nothing heavier than a 52, so why would a smaller cartridge prefer a slower twist like the 14? Seems the 12 twist would add just a bit of a safety margin in the event the twist might be a bug-a-boo with the slower velocities of the 223. Which would you choose and why? Thanks for your input.