Is it worth it to have both rods or will the slightly smaller in diameter rimfire cover everything? I am looking at replacing the low-end cleaning rods I purchased years ago for some quality coated bore tech rods in 22, and 30 caliber. From looking on Brownells's site, bore-tech has a rimfire diameter as well as a centerfire 22 caliber rod. Is there a limitation to using the 22 rimfire rod for both? Is there a chance of damage to the rod due when used in a larger bore due to bending or am is this not the case? Basically, should I spend the $50 for a 22 rimfire and 22 centerfire rod or will the .22 rimfire rod due?