Hey guys, have a question: i got this rifle from my Grandma when she died a while ago, but never really looked at it that closely till now. I found some really old .22-250 ammo in our gun closet and figured it went to it, but when i showed it to a guy who knows quit a bit more about guns than me, he said the bullet didn't look like it fit the bore.... ...so the question: do any of you guys know what this is, and more importantly, what caliber? There is no marking on it that tell me what caliber, and I'm hoping to take it with me bird hunting but don't have time to a gun smith. The thing is quite old, but looks like it would be a great gun to shoot rabbits and coyotes with... Hope you guys have some ideas on what this is!!