this is a 2 part question. first, i was wondering about my scope. i have a ruger 10/22 carbine with a bsa scope (i think 4x32 bit im not sure) chambered for .22 LR ammo.im kind of a begginer, ive been shooting for about 6 months. im pretty big on capping squirells in my backyard, but ive always been a bad shot i realy cant keep the gun steady, i have had loads of situations where i have had a good shot at a squirell and i miss. but lately ive noticed i have had the scope right on the target when i fire and i still miss. hmmm... when im setting my scope, i center it and im positive it is dead on after ive set it. then i put it away in my closet, laying on its side in the gun case, the scope is a bit wider than the gun, so i think most of the wieght of the gun is on the scope, and ive had plenty of situations when i was positive that my scope was right on a squirell when i fired but i miss. does prolonged pressure on the scope make it move a little? (ive tightened it pretty good)

also, tell me about how to steady my aim, and ballistics if u can

second question (dont worry, much shorter) im trying to convince my friend to buy a .22 (we love to hunt togethere with pellet rifles, but now his pellet rifle is obsolete compared to my squirell pelting beast. he wants it cheap. what is the best .22 caliber rifle for a very low price (like near 100 dollars or less, maybe higher if the rifle is exceptional). he doesnt care if its bolt action or semi auto, sort or long, accuracy is somewhat important tho.

thanks to anyone who can answer these very specific questions.