What you need on a rod guide:
A bushing to center the rod in the bore so it will not rub in the throat
Seal the chamber off from solvents running down in the action and bedding
Large enough to fit the brush, but not too large so that rod flex and rub the bore.
Neil Jones makes the best:
Phone: 814-763-2769 in Pa
Lucas is a copy of Neil Jones
There are a lot of junk bore guides out there
