I saw mention above of the old Burris Signature line. I have a matte 2-8x Signature on a .270 WCF that I have happily used for about 20 years, now. How do the old Signature scopes stack up compared to today's scopes?

As I recall, the Signatures (and maybe the Fullfields from back then, too) had a brass erector tube. Is this still a feature of Burris scopes? If not, why was it done away with? Was it a good idea, at the time?

Thanks, in advance.

Scott