I just installed the backlight chassis on my rifle and having trouble getting it set up up correctly. I have Medium Talley rings currently installed, but it feels significantly to low. Has anyone else experienced this? Maybe it is the above bore recoil pad?? I’ve never had a chassis before, so this is new. I feel like I need high rings…maybe extra high.
A trick I was taught a few years ago is to stack quarters between the receiver and base of the scope until you have a comfortable line of sight. At that point measure the stack of quarters and use that to determine the ring height needed, or possibly a taller/higher moa rail or combination of the two.
Jim talks about this in Backfire’s most recent video. You can also visit the thread here on Discourse called “Rifles in a Backlight" and see a great conversation about this topic.
Ultimately, you will need medium rings at minimum, but likely high or extra, as you stated. The reason is that the Backlight, unlike traditional stocks/chassis, has an above bore recoil pad. It raises the cheek and anchor point naturally. However, that raises your focal point, so you will need taller rings.