My white super ‘91 came with the usual 3/4” wide aluminum bases, probably made by weaver. I have a brand new set of 30MM warne detachable rings that will not hold zero. I did follow the manufacturer’s directions to the T when installing them. There is also a great video on utube from warne on using this series of rings. I get the gun zeroed at 100 yds, take scope off and replace it, moving it forwards all the way, it shoots 3” high. Did this a few times and lost my faith in them, called warne and they said send them back. That they could not have a product out there that was faulty. Then asked about what the bases were made out of, and said get a set of STEEL bases. Called Marlowe Richards and he said that he did not have any 3/4” bases at this time and maybe in the future as he was working with warne on getting some.. so i need to find a set of steel bases for the super ‘91.. any advice?