5s, no need to experiment at this point, but thanks for the info. I'm happy with the accuracy, and I stocked up at Gander MTN for $1 per box, and have a few years worth of slugs stocked up. I figure if I can keep a box of slugs into 5" at 100yds with irons, that's all I need.

I'm also an unrepentant Burris user, my first scope I bought with my own money was a Signature 1.5-6x for my pre-64 FWT .308. That was 20+ years ago, and it's been there since. I have a few Leupolds, and a Pentax (burris with a dift paint job)but my go-to is burris. I've had better luck with their customer service than Leupold, as well.