Buying a new Douglas drop in barrel for a Savage action, in .222 Remington. I want to use 40 grain bullets exclusively, but may plink with 45's and 50's now and then. I know the "standard" twist for .222 Rem. is 1-14. How will the 1-14 stabilize the 45's and 50's? I can get the barrel in 1-12 for more versatility, but will that twist have any negative effect the 40's? Thanks.