I've been using Leupold bases on my 12 BVSS since new. I like the ability to load from the left and eject right and not being blocked by a piece of metal bridging across the top of the port.

Now however it occurs to me that with my scope turret bottomed out while sitting in a mount that is parallel to my barrel/action, I am looking through the far edge of the lens mounted inside the Reticle tube. And maybe the clarity and focus is not so good at this extreme edge. There's a word for this effect, i think its call vignette.

Is the use of an angled base going to make a sizable difference in focus and clarity etc by moving the target image more into the center of the lens?

Can I get a two piece base with a 10 MOA slope, or am I stuck with a one piece?

Please don't be afraid to flog me mercilessly if I'm concerned about nothing. Maybe I just have too much spare time on my hands to read.