Originally Posted by D.ID
I know conventional wisdom says the shorter barrel will have less whip and a short action is more rigid but I have a long barreled, long action that can do .25" @100 so you have to ask how much it really matters.
It's more a fact that anything you put through the short barrel shoots better. I've got 26" barreled la sporters and they shoot well. I've seen pistols with 14" barrels turn in 5 shot .25"-.5" 100 yd groups with a 4x scope, and I've done it a bunch of times myself. If you don't have to worry nearly as much about harmonics, you can get the gun going quickly and get used to your load, instead of playing the load hunt game.
By the way, the 300wsm pistol I refered to has a 14" barrel including the muzzle brake.
It's what the OP wants, and it might just be a tack-driver.