To all you [us] old ,farsighted ,geezers, either make or check out the pinhole attachments that either clip on your glasses frames or mount on a cap/hat brim.
Some have adjustable and /or interchangeable hole size, works from quick running shots to serious bench sighting in sesions, nothing optical [ glass] involved and nothing attaches to the gun.
I have good results with the Lee REAL bullets I cast in .45 and .50, they are also available in .54 and .58, instructions say to use only soft lead but I have no more trouble loading them when I use ww's.
I just tumble lube them with liquid alox and go shoot.
Don