WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to - www.P65Warnings.ca.gov.
I use these in my Magnum Research 500 JRH with Unique for about 1050FPS. These 440's shoot amazing for an iron sighted revolver. I have shot many groups at 100 yards the size of my fist for 5 rounds.