.45 ACP
Take it to a gunsmith for verification.
9mm rounds.
almost every kind of 7.62x39mm
Lincoln's Repeater uses .44 Magnum ammo.
$500 - $550 new in box, give or take.
You need to have it examined by a gunsmith to be sure.
Yes I have a bunch of airsoft gun's and i have used ammo that is the wrong size... and i clogged the gun and had to take it apart to get it out.
Contact Glock and they will send you a manual for free. You can also download one from the Glock webiste.
BB's or a single shot .177 caliber pellet.
Standard 16 gauge shotgun shells.
It was offered in more than one caliber.
You need to submit the kind of firearm is it? Pistol, rifle, shotgun?