Hope I didn't make a mistake. Shortly after I ordered a set of Leupold Rifleman base and rings it occurred to me, being made of aluminum the screws might not hold tight. Could that be a problem? Anyone have any info or experience on these items? Thanks for any help.

Don't have any experience with them but Talley Lightweight one piece bases are excellent quality.

I have both the one piece jobs and the two piece ones. Prefer the two piece, just for strength and like vert split better anyway. As long as Talley is stamped on the side, you are ok.

They are just fine. You scope isn't gonna go any where.