I might be wrong but iron sights vs 6x at 100yds the 6x should win ever time.Here is the text of the PDF so you don't have to download it.
100 Yard Benchrest Rimfire Sporter Match
Cresap Rifle Club will hold a 100 Yard Benchrest Rimfire match Saturday September 16th at 1:00 PM, following the CMP Maryland State Rimfire Sporter Championship.
This competition is open to the public and will be a 50/50 match: Entry fee is $15 and the winner gets half the take.
CMP rules for equipment will be followed: .22 LR, 7.5 pounds max rifle weight, 3-pound trigger, open or aperture sights or maximum 6 power scope. Other than that, any .22 rifle can be used. Course of fire is 5 minutes for sighting in, then 20 minutes for 20 record shots from a bench rest with no more than 2 sand bags. Targets are A-25 rimfire targets. All proceeds go to support the Cresap Junior Rifle Team.
Cresap Rifle Club, 6420 Plant Road, Frederick, MD
If you have questions, please email jrrifleteam@cresaprifleclub.com .