What you have asked about does not exist.
50-350
.30-06
50-60s or so
50's or so
50-100 USD. 50-100 years old
50-200 or so
50-5000 USD depending on specifics
$50
Serial numbers were not required before 1968. 50-100 USD. 50 + years old.
what model A 50 year springfield .22 cal rifle would probably refer to a springfield that is at least 50 years old. It is impossible to say more about it without knowing a model and serial.
To check the bore of a .50 caliber black powder rifle, first ensure the rifle is unloaded and safe to handle. Use a bore light or flashlight to visually inspect the interior of the barrel for any obstructions, rust, or fouling. You can also run a clean, dry patch or a bore snake through the barrel to feel for any irregularities. Finally, measure the bore diameter using a caliper or a specialized bore gauge to confirm it matches the .50 caliber specification.
Yes, I can. A Barrett M107 is a .50 caliber sniper rifle.