I fired two magnum rounds thru the Super Redhawk, 44 and the front lense cracked. I continued to shoot almost 100 rounds over three days and it still worked and I got 2 inch groups at 50 feet one handed.
Millet said to send the scope in, and a new one would be shipped out.
This is my second Millet sp-1 the other is on a Ruger Mark II 22lr, thousands of rounds and flawless performance (unless I leave the thing on).
I will give the new one a try.
Fred
