Welcome to the forum Blackgunnut.
You've asked a question I just came here to ask. My application is a little different.
I just bought a Remington 700 LTR in .308 and was looking at Leupold when it occurred to me that I might be interested in a front focal plane with illumination. A quick Google search turned up Firefield but the price is so low it makes me wonder what I'm buying. Don't get me wrong. The easier on my pocketbook the better, but I'm seeing them for $150. That just seems like a low price for quality optics.
I would love to see one in person.