Mine is bolted to a Colt Anaconda 44 mag and it holds right where it's 'sposed to. Yeah, it ain't pretty but its doggoned good at what it was designed to do, help out old farts like me with eyes that ain't what they used to be. I also had one mounted on a Remington 25-06 that I sold to a nephew and he slew one heckuva big muley with it last Fall so I kinda like'm.