I did check this 303 before firing it.
Buba, [who owned it before me, drilled a hole thru the backsight, right thru the barrel. I test fired the rifle with a lead sled and a pull rope.
The first shot was ok, the second shot i held the gun up to my shoulder, and when i fired it the screw blew out of the backsite, the backsight lifted about 1/4" and i got a faceful of powder and pressure in my face.
Sorry no more 303's for me.
Thank god for shooting glasses
take care old timer 74
[I DID NOT KNOW THE THERE WAS A HOLE UNDER THE BACK SIGHT]