Well, it was only a suggested option. Personally, I switch between irons and a 1.5-5X scope on my 30/30 and find the QD rings ideal for that. Unfortunately, they tended to leave marks on the alloy bases I used to have, so I switched to the steel Grand Slams for marginally more money. While I think the Weaver system is great, I don't like their rings since they are prone to marking scopes. Guess everybody has different likes and needs, which explains why there's so many different rings/bases out there.