Re: signiture ring inserts question
If you need more MOA you can use a tapered base with the signature rings. I used the Leupold LR STD base with Burris 30mm STD Signature rings on my Remington 700P to create (in theory) 40 MOA. I figured it out and with the comes up I had I could crank out to 1525yds, with a 300yd zero.
I guess you could also use the Signature Zee rings with 20MOA Picatinney rails. JohnnyK.
"The only thing necessay for the triumph of evil is for good men to do nothing."