RimfireCentral.com Forums - View Single Post - Dovetail cut in BB barrel? - Aperture Sights for BI 7-2, Engineering Grade Epoxy
View Single Post
Old 11-26-2008, 12:13 PM
US Navy Disabled American Veteran NRA Member - Click Here To Join!

Join Date: 
Mar 2008
Red Rock, AZ
TPC Rating: 
73% (7)
Send a message via AIM to AzizaVFR Send a message via Yahoo to AzizaVFR
I was able to take the Biathlon out for a test firing last night. With the sight arrangement as stated above, it aims quite nicely. It will shoot perfect dead center 1/4" groups off-hand at 12m with the rear sight at its lowest setting. At 25yards, it is about an inch high. I ran out of downward adjustment in the rear sight. I have found some different sized front bases on Champions Choice ranging from 0.175"- 0.795". From my calculations, my front base is 0.152" too short. I guess the ideal choice would be the E sized, 0.375" base, found here.
Reply With Quote